16 Must-Buy Items New Costco Members Should Add to Their List

If you're considering getting a Costco membership for the first time, the yearly fee is well worth the cost. This superstore has a ton of items that cost you less when you buy in bulk, and it saves you multiple trips back and forth from the store.

Plus, there are plenty of exclusive savings that are great for any household, whether that's on name-brand products or value-sized deals. Your membership can easily pay for itself if you shop for the following bargains and more.

The key is to look beyond the upfront price and consider how much you save per serving, per item, or per use. Costco's Kirkland Signature products are particularly worth browsing because they offer another way to get quality household favorites without paying premium name-brand prices.

Editor's note: Prices and availability are subject to change and may vary by location.

Price: $35.99

This bulk-size buy at Costco can save you serious cash. A cup of Starbucks coffee usually costs at least $3, but with this deal, you can make one at home for just $0.50 each.

This variety pack includes four classic Starbucks flavors and blonde, medium, and dark roasts. Put these K-Cups in your Keurig for a fresh brew that saves you a trip to the drive-thru.

Having several roast options on hand also makes it easier to switch up your morning routine without buying multiple boxes at the grocery store. You can enjoy a Starbucks-style cup at home for a fraction of what you'd spend ordering one at a coffee shop.

For households with multiple coffee drinkers, the savings can add up quickly, especially when everyone has a different favorite roast.

Price: $36.69

At Costco, you can enjoy high-quality products for less under the Kirkland brand, like these Wagyu patties.

You get five pounds of ground beef patties, ready to pop on the grill, in these convenient packages. Plus, each patty comes to around $2.50, a steal you can't find elsewhere.

Buying patties in bulk is especially convenient for families who regularly grill or prepare burgers at home. You can keep the extras on hand for quick weeknight dinners, backyard cookouts, or weekend meals without making another trip to the grocery store.

The individual portions also make meal planning easier because you can take out only what you need. That combination of convenience and a lower per-patty cost makes this a worthwhile freezer staple.

Price: $10.49

Enjoy rich, creamy butter in any dish or recipe with this four-pound pack of sweet cream butter.

Buying individual sticks at other stores, like Target, would cost you around $3.19 per pound. But at Costco, each pound only costs $2.62. Plus, this high-quality butter elevates any baked good, and this bulk size is perfect for making large batches.

That's a meaningful difference for households that go through butter regularly. Whether you're preparing breakfast, making cookies, or cooking family dinners, having four pounds available means fewer grocery-store runs.

You can also portion out what you need and keep the rest stored for later use. For frequent bakers, buying a larger package at a lower per-pound price is an easy way to keep ingredient costs under control.

Price: $32.99

You can buy all of your pet food at Costco for considerably lower prices than pet stores. This variety pack of wet cat food includes 45 easy-open trays in three flavors for under $33.

And you can always count on quality; this grain-free cat food is made with real ingredients for a meal your pet is sure to love.

The variety pack includes 15 chicken, 15 turkey, and 15 salmon recipe trays, with each serving containing 3.5 ounces. Chicken, turkey, or salmon is the first ingredient, and the formula contains no corn, wheat, or soy. It is also made without artificial flavors or colors.

At roughly 73 cents per tray at the listed price, this bulk purchase makes it easier to stock up on your cat's meals without paying for individual packages at a pet store.

Price: $19.99

You get over a thousand plush tissues in this value pack, each at $0.02. Costco has the Kleenex brand to combat sniffles, sneezes, and more, with an ultra-soft touch for your comfort. This bargain gives you 12 cube boxes you can set anywhere.

Each box is convenient to keep in a bedroom, bathroom, office, or living room. The three-ply tissues offer an extra layer of softness, and the hypoallergenic, dermatologist-tested formula is designed to be gentle on skin.

Buying in bulk also means fewer trips to restock, making this a practical way to save on an everyday household essential.

Price: $16.49

This variety pack of sodas has your favorite flavors in a smaller, more convenient size. Each pack includes 10 cans of Sprite, Cherry Coke, and Fanta Orange, making it especially handy and economical for parties.

The 7.5-ounce cans are a convenient alternative to larger soda cans when you want a smaller serving. You get 30 cans altogether, with enough variety to give guests a choice without having to purchase three separate cases.

They're also easy to chill, pack for gatherings, or keep in the refrigerator for an occasional treat. At the listed price, each can costs about 55 cents, making this a budget-friendly option for stocking up before your next get-together.

Price: $9.99

Add more veggies to your diet with Costco's selection of frozen vegetable mixes. These mixed veggies come cut and ready to heat in a variety of ways, including as a side dish or in homemade chicken pot pie. This five-pound bag has carrots, green beans, corn, and peas for under $10.

Frozen vegetables are a convenient way to stretch your grocery budget because you can use only what you need for each meal. Add a handful to soups, casseroles, stir-fries, or rice dishes to make inexpensive ingredients go further.

The large bag is especially useful for families who regularly cook at home, since you don't have to purchase several smaller packages to get the same amount. At about $2 per pound, this Kirkland Signature option makes stocking up on organic vegetables more affordable.

Price: $8.49

Having enough water on hand is key for any household, so stock up and save at Costco. This value pack has 80 bottles of purified water. In comparison, you can only get 32 bottles of water at Target for $5.39, so this is a much better deal.

At roughly 11 cents per bottle, this Costco pack is an affordable way to keep your refrigerator stocked. It's also convenient for packing lunches, taking water on road trips, or keeping extra bottles available for guests.

Buying a larger case means you won't have to make frequent trips to the grocery store to replenish your supply. For households that regularly purchase bottled water, the lower per-bottle cost can make a noticeable difference in the grocery budget.

Price: $34.99

Get 30 rolls of your favorite brand of toilet paper in this Costco deal. With each roll, you get 213 two-ply sheets for your comfort, and it's all just $35, which beats other store prices. Each sheet is wider than typical toilet paper, so this is one purchase worth the trip to Costco.

The package provides 6,390 sheets altogether, giving you plenty to keep in your linen closet or bathroom storage. Buying a 30-roll package also means you can go longer between shopping trips and avoid paying more for smaller packs.

The two-ply design and soft texture make this a practical household staple, especially for larger families that go through toilet paper quickly. When you're comparing bulk purchases, the total sheet count is worth considering alongside the price to see how much value you're getting.

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Price: $9.99

Costco shoppers love this vanilla extract, and the price is just right for anyone looking to save.

This bulk-sized bottle is handy for baking or adding some sweet vanilla taste to any homemade dish or drink. Plus, you're getting 16 ounces for $10, which should last you a long time and is much more affordable than buying a smaller size at your local grocery store.

The large bottle is especially useful if you regularly bake cakes, cookies, muffins, or other homemade treats. You can also add a little vanilla to pancake batter, smoothies, and homemade desserts.

Because vanilla extract is typically used in small amounts, a 16-ounce bottle can supply plenty of recipes before you need to restock. Costco's Kirkland Signature option is also kosher, making it another convenient pantry staple to pick up during a warehouse trip.

Price: $5.39

Make cooking even easier (and more affordable) with these value-sized bottles of Pam cooking spray.

Each 12-ounce bottle offers over a thousand sprays to keep your food from sticking to pans, grills, and more. Plus, one eight-ounce bottle from Walmart would cost $4.08, so this is much more cost-effective.

The two-pack gives you 24 ounces altogether, making it a practical purchase for anyone who cooks frequently. Use it to coat baking pans before making brownies, prepare a skillet for breakfast, or help prevent food from sticking to cookware.

The original formula uses a canola oil blend, and the spray format makes it easy to apply a light coating without pouring oil directly into a pan. Having an extra can in the pantry also means you won't have to run to the store as often when you're running low.

Price: $16.99

Costco has name-brand-quality clothing for less, like this four-pack of boxer briefs.

This hot item has super-soft cotton and a comfort fit that rivals other boxer briefs from your favorite retailers. At four for $17, each pair costs just $4.25.

The briefs are made with 96% Supima cotton and 4% spandex, offering a combination of softness and stretch. They also feature a comfort waistband and tagless design, so you don't have to sacrifice everyday comfort to save money.

The four-pack is available in multiple sizes, making it easy to replenish a clothing essential in one purchase. Instead of paying premium prices for individual pairs, you can stock up for less than $5 per pair. That's an especially appealing deal for shoppers who prioritize comfortable basics without overspending.

Price: $12.99

This pack of tri-color pasta can save you time and money during those busy nights.

Keeping pasta in your pantry is an easy way to make affordable dinners without relying on takeout or expensive prepared meals. You can pair it with marinara sauce, vegetables, ground beef, or whatever ingredients you already have available. Tri-color pasta also adds a little visual variety to ordinary pasta dishes, making it a useful option for family meals and pasta salads.

Buying a three-pack means you have multiple meals' worth of a versatile pantry staple ready to go. It's another example of how Costco's larger packages can help you spend less time shopping and keep your grocery budget in check.

Price: $19.99

Costco's multi-packs make it easy to stock up your fridge, closet, garage, and more.

These no-show socks easily add to your sock drawer with some comfortable and affordable options. You get 20 black, white, or multicolored socks in a pack, making each pair just $1.00 for an unbeatable bargain.

The socks feature a cotton and Lycra blend, with 80% cotton, 17% nylon, and 3% Lycra spandex. They also have a signature non-slip heel pocket to help keep them in place, along with a smooth toe seam and mesh welt for added comfort.

They're designed to sit below the shoe line, making them a practical choice for sneakers and other low-cut footwear. At just $1 per pair, this is a particularly good opportunity to replace worn-out basics without spending a lot on individual packages.

Price: $119.99

While this may seem like a pricier find, this cookware set comes with 12 non-stick pots and pans that can upgrade your kitchen for around $10 per piece.

This item is also a customer favorite, which is another great thing about a Costco membership. Since so many shoppers have tried their products, you can read up on reviews online before purchasing.

The comments about the durability of this item mean you're saving more in the long run.

The set features heavy-gauge hard-anodized aluminum, tempered glass lids with stainless steel rims, and a triple-layer non-stick coating designed for easier food release and cleanup. It's oven-safe up to 400 degrees Fahrenheit and works with all cooktops except induction. Hand-washing is recommended to help maintain the cookware.

When you consider how much it would cost to replace individual pots and pans, getting a complete set in one purchase can be a smart kitchen investment.

Price: $19.99

Costco has a ton of items comparable to name brands, like these Flex-Tech trash bags.

Each value-sized box has 200 13-gallon bags to fit all of your trash, recycling, mess, and more. And at this price, each sturdy bag is only $0.10, meaning you get your money's worth out of this bargain.

These kitchen bags feature a flexible design that expands around your trash to help reduce tears and accommodate larger loads. The reinforced tops and gripping drawstrings also help keep the bags securely in place instead of slipping into the trash can.

Another useful perk is the seven-day odor-control feature, which helps keep unpleasant smells in check.

With 200 bags in one box, you can stock up on an everyday household essential and avoid repeatedly paying for smaller packages. At just 10 cents per bag based on the listed price, this Kirkland Signature purchase is an easy way to keep household expenses down.

A Costco membership is an amazing deal for households of any size. This superstore's wide selection of home goods, clothing, groceries, and more can truly reduce your grocery bill.

You can even stop by Costco's cafe to grab an inexpensive (but tasty) bite or utilize their pharmacy for even more savings.

The trick to getting the most out of your membership is to focus on products you regularly use and compare bulk prices with what you'd pay at other retailers. Kirkland Signature products are a particularly good place to start, as they offer affordable alternatives across multiple household categories.

Between the grocery savings, everyday essentials, and occasional big-ticket bargains, a few smart purchases can go a long way toward offsetting your annual membership fee.