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Kevin O'Leary has built a reputation for sharp one-liners that cut straight to the truth, and his latest financial confession is highly relatable. He says the single best habit he wishes he had started sooner was to stop wasting money buying pointless things and invest it instead.
Let's explore what O'Leary really means and how this single habit could reshape your financial future and eliminate some money stress.
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The one habit Kevin O'Leary wishes he started earlier
O'Leary sums up his philosophy in a few words: Don't buy crap you don't need.
According to O'Leary, many people unknowingly sacrifice decades of compound growth for purchases that bring only brief satisfaction. Money left in the stock market for 20 years can grow dramatically through compounding. Historical market returns often grow 8% to 12% annually over long periods, meaning invested dollars can multiply several times without additional effort.
Stop spending on things you don't need
It sounds obvious, yet it pushes against habits many people barely notice. Convenience purchases and small "treat yourself" moments quietly drain money that could serve a bigger purpose later.
O'Leary's point is that the real loss is not the item. It is the investment growth that never happens. Redirecting even $50 or $100 a week into long-term investments could compound into thousands of dollars and create more security in retirement.
Delayed gratification can be a wealth strategy
When O'Leary talks about buying "crap," he means everyday purchases that fade fast and add little lasting value. Think of spending $100 each week on impulse shopping or takeout. Over a year, that equals about $5,200.
Invested annually for 20 years at roughly 8% growth, it could grow to more than $230,000. What disappears is not just the cash, but the future wealth it could have built. Here are some ways to put this into practice.
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Cut unused subscriptions and memberships
On average, Americans spend $1,900 annually on subscriptions. Unsurprisingly, most underestimate subscription-related monthly costs by roughly $51, allowing small charges to slip by unnoticed.
Canceling just $40 per month can free up about $500 each year for investing. Left to grow for 15 years at moderate returns, that simple change alone could compound into tens of thousands and provide meaningful support for long-term retirement security.
Reduce frequent takeout and convenience spending
Spending $25 on takeout four times a week totals about $5,000 per year and often replaces healthier, lower-cost meals prepared at home. Cooking more regularly can support better nutrition while redirecting meaningful cash toward retirement accounts.
Invested consistently for 20 years, those savings could exceed $200,000, depending on your rate of return. The shift does not require eliminating dining out completely. Even a partial reduction can create a meaningful long-term impact.
Avoid impulse buys that delay financial freedom
Unplanned purchases often deliver only brief satisfaction. Spending $200 a month on impulse buys, such as clothing or gadgets, can easily add up to $2,400 a year.
With a rate of return of 8% to 12%, that habit invested could grow to roughly $65,000 to $90,000 in 15 years. A short pause before buying helps shift decisions from emotion toward long-term financial control.
Downsize everyday lifestyle inflation
As income rises, spending tends to rise with it. Larger homes, pricier vacations, and constant upgrades become normalized rather than intentional. Suddenly, a $60,000 lifestyle turns into $75,000, leaving little room for saving despite higher earnings.
O'Leary frequently warns that lifestyle inflation can prevent wealth-building. Holding spending steady while income grows allows the extra money to flow into investments, accelerating long-term financial stability without extreme sacrifice.
Forego driving costs that quietly drain savings
High car payments, frequent upgrades, and expensive insurance consume a large part of the monthly income. In Q3 2025, the average new car payment was $748, compared with $532 for a used car.
Choosing a reliable used vehicle could save over $200 each month. Invested over 20 years, that difference could grow into more than $150,000, making transportation choices a key factor for wealth-building.
Automation can remove the stress of discipline
Automatic transfers into retirement or investment accounts remove the need for constant decision-making. Your money simply moves before it can be spent elsewhere. This approach reduces emotional interference and builds progress quietly in the background.
Many successful savers rely on automation because it transforms good intentions into consistent action without requiring daily attention or willpower.
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Bottom line
Kevin O'Leary's best money habit is deceptively simple but highly effective. Many people reach their 50s or 60s and wonder where their money went. Yet consistently redirecting even $50 to $100 into retirement accounts can grow into substantial savings over time.
Following this habit helps you keep more of your hard-earned cash while building long-term wealth. The key is consistency, and starting sooner makes the habit even more powerful.
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