Clark Howard’s Anti-Impulse Shopping Rule as Costco Stock Climbs Above $1,025

Quick Read

• Clark Howard says people should visit physical stores only every sixth week and carry items in their arms to keep impulse purchases from adding up.

• A weekly shopper who spends $40 on unplanned items would waste $2,080 a year; cutting visits to nine a year lowers that to $540 and saves $1,540 annually.

• Costco’s CFO says a "treasure-hunt environment" helps lift average ticket size by 6%, showing how stores are built to encourage impulse buying.

Consumer host Clark Howard said on his podcast that his advice grew out of years spent counseling couples about money: "When I would do couples counseling, I wanted people to only go into physical stores every sixth week because my experience is when you're in stores, you're going to buy more than you would if you weren't."

He also explained the way he shops at a warehouse club: "I walk the aisles till I've seen everything. The things I pick up are only in my arms. If I see something else I want, somebody has to go back on the shelf. Only at the very end do I go get a shopping cart."

Yahoo Finance’s Brian Sozzi noted that the stock trades at 44 times forward earnings. CNBC also framed Costco as a November holiday trade, pointing out that the shares have climbed in November for 17 straight years. In other words, investors are paying for the kind of seasonal browsing Howard says to avoid.

Howard’s Advice Makes Sense Once the Trips Are Counted

The logic is straightforward: impulse buying is a per-visit expense, and that cost multiplies with every extra trip. Most shoppers simply never do that math.

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Costco’s own figures show why fewer trips matter. In its fiscal fourth quarter, shopping frequency increased 3% and the average ticket rose 6%. Nonfood items were the strongest category. The CFO said members "show a willingness to spend in discretionary areas where they're seeing exciting new items at great value." He also pointed to the "treasure-hunt environment" inside the warehouses. That phrase captures the model: every visit creates another chance to buy something that was never planned.

Consider a shopper who goes once a week and adds $40 of unplanned purchases each time. Across 52 trips, that totals $2,080 a year.

If that person instead shops once every sixth week, or nine times a year, the total changes sharply.

Assuming impulse spending rises to $60 per trip because fewer visits mean more new items to notice, the yearly total drops to $540. That would save $1,540.

Using a credit card makes the gap even larger. With an average APR of 21%, carrying a $2,080 balance for a full year would add about $441 in interest.

Your Shopping List Is What Changes the Outcome

How much this rule helps depends on one factor: whether you shop from a list and actually stick to it.

A weekly shopper who follows a list but still adds $10 per trip would spend $520 a year on extras.

Reducing that to nine trips at $15 each brings the total down to $135, which saves $385. That is real money, but it is still only about a quarter of the savings available to a browser who wanders through the store without limits.

Fewer visits also come with trade-offs. Fresh food can spoil, and shoppers lose easy access to low-cost gas. Costco says its pumps have saved members more than $3.2 billion compared with average prices.

For people who tend to browse, the per-trip impulse total does most of the damage. That is why Howard’s arms-only rule is his sharpest tactic: it caps each visit at what can be carried by hand and forces a trade-off between items instead of allowing one more on top of everything else.

Delivery is not a complete solution either. Costco says orders through Uber Eats, DoorDash and Instacart can arrive in under an hour, which helps for quick fill-in shopping. Howard also warned in the same episode that phones create their own pressure: "There's this deal, there's this sale next 12 hours today only. Whatever. Urge, urge, urge to click to buy."

Try a Three-Month Impulse Check Before the Holiday Season

Run the check before your first warehouse trip of the season, so you can calculate your real per-visit cost before holiday promotions push you down extra aisles.

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