Most people expect billionaires to offer sophisticated advice. They may want to know about a hot new tech stock or the latest crypto scheme.
So, when "Shark Tank" investor Mark Cuban was asked how he's spending a $100,000 windfall, his answer was surprising. His focus wasn't on beating the markets, per se, but more about becoming financially fit in uncertain times.
Read on to hear what he suggested people do with their extra cash and why now may be the best time to listen.
Set up direct deposit - pocket $400
Set up an eligible direct deposit with SoFi Checking and Savings and you could pocket a bonus of up to $400. Make the switch, set up direct deposit, earn the bonus. It basically takes no extra work at all other than following these steps.
Why people are switching: This account earns up to an insane 4.00% APY1 <p>Earn up to 4.00% Annual Percentage Yield (APY) on one SoFi Savings account with a 0.90% APY Boost (added to the 3.10% APY as of 5/28/26) for up to 6 months. Open your first SoFi Checking and Savings account and receive eligible direct deposits OR qualifying deposits of $5,000 every 31 days by 12/31/26. Rates are variable, subject to change. Terms apply at <a href="https://www.sofi.com/banking/#4">sofi.com/banking#4</a>. SoFi Bank, N.A. Member FDIC.</p> on savings for up to six months (3.10% APY standard + 0.90% APY boost) on top of that $50 or $400 bonus.2 <p>New and existing Checking and Savings members who have not previously enrolled in Direct Deposit with SoFi are eligible to earn a cash bonus of either $50 (with at least $1,000 total Eligible Direct Deposits received within 25 calendar days of your first Eligible Direct Deposit of $1 or more) OR $400 (with at least $5,000 total Eligible Direct Deposits received within 25 calendar days of your first Eligible Direct Deposit of $1 or more). Cash bonus amount will be based on the total amount of Eligible Direct Deposit received within 25 calendar days of your first Eligible Direct Deposit of $1 or more. If you have satisfied the Eligible Direct Deposit requirements but have not received a cash bonus in your Checking account, please contact us at 855-456-7634 with the details of your Eligible Direct Deposit. Direct Deposit Promotion begins on 5/15/2026 and will be available through 12/31/26. See full bonus and annual percentage yield (APY) terms at <a href="https://www.sofi.com/banking/checking-offer/">sofi.com/banking/checking-offer/</a></p> That's way better than the measly 0.38% APY (as of 06/15/26)3 <p>Based on <a href="https://www.fdic.gov/national-rates-and-rate-caps">this</a> FDIC data, as of 6/15/26.</p> national average savings accounts offer.
No monthly fees and no surprises. Open your account and earn up to a $400 bonus
Cuban's classic advice for today's economy
Cuban's 2010 Forbes interview may have been over 15 years ago, but the way it applies is still relevant. He stated that, if given $100,000 to invest, he would use it for the following:
- Paying off bad debt, like credit cards
- Buying bulk supplies, including groceries or toiletries
- Sticking cash in a bank account, even if not earning interest
If this sounds odd, it's because it's counter to some of what other financial gurus have promoted. Cuban's theory is that you can invest, but you should have some basic stability moves out of the way first. Without the worries of high-interest debt and some cash in the bank, you can make more strategic moves when the time comes.
His examples were very specific, including buying bulk soup at 30% off and letting cash sit so you can pounce when the housing market is just right. But even if you're not a soup fan, his principles still apply.
Essentially, Cuban is saying that speculative bets should wait until you're secure and ready to handle whatever the future throws at you. And then be prepared for hot opportunities when they come your way.
The math behind these money moves
The specifics of soup or toothpaste aren't the main point here. It's the compounding logic of savings behavior and having liquidity to get in on good buys. When you buy goods at a discount, their value often outpaces as goods go up in price.
Take toilet paper, for example:
If you typically spend $10 a month on toilet paper, this may not seem like much. Over the course of a year, you'll spend $120, assuming the cost never goes up. But if you buy in bulk at a 15% savings over buying one package at a time from the grocery store, you'll see an $18 savings that year.
That may not seem like much, but multiply that savings for soup, toothpaste, and pet food. Some purchases, like sunscreen, may not scale. But if you buy baby diapers, you know there's a big opportunity to save money over time.
Now, factor in the inflation of consumer goods at 2% to 4% annually, and you have an even bigger chance to save. That toilet paper is now worth much more than when you bought it, locking in guaranteed returns that rival the small market gains of some years.
There's also very little, if any, risk in buying toilet paper. The worst-case scenario is that you can unload it on a neighbor through Facebook Marketplace at the same cost you paid for it. It won't dump value like a poor stock option, and it won't really lose value.
Building in opportunity cost
Cuban takes this strategy one step further and mentions keeping anything not spent on paying debt and buying toilet paper in an interest-free account. While it may not make sense to let your money sit without earning, many accounts that pay the most interest also lock it in, such as Certificates of Deposit.
With that money sitting freely in an account, you can access it whenever you want, even if it's to put in a last-minute cash offer on a property.
Now, the specifics of this may not work for you, and you may want to follow the advice of a financial professional for your unique situation. You may find that "opportunity" is more about having enough to live on if something were to go wrong, not necessarily about investing in business deals. However you look at it, the general principle still applies:
Reduce debt cost, cut household expenses, and free up cash for important things.
The key is to make your money situation stable and ready for whatever the economy throws at you. Cuban is still thinking like an investor, just at a household level that most of us can apply.
Bottom line
With inflation and rising living costs making it harder to buy things like toilet paper and soup, stocking up at a discount may not be a bad idea. Many Americans can't access meaningful investment opportunities without getting debt and expenses under control, and this may be just the thing needed to think like an investor.
It also provides some psychology of progress with daily, visible wins instead of uncertain, future returns. Once the basics are stable, then small, thoughtful investments can transform those savings into life-changing, long-term wealth.
This article is for informational purposes only and should not be considered investment advice.
More from FinanceBuzz:
- Retire like the rich: 14 ways you could build wealth in your 50s.
- Find out if you could pay less for car insurance in just a few clicks.
- Make these 7 savvy moves when you have $1,000 in the bank.
- 14 moves seniors could benefit from but often forget about.
Add Us On Google