Ever notice how the people who work at stores seem to know something the rest of us don’t? Costco employees spend their days watching shoppers load up carts with items that end up getting returned or gathering dust in garages. After years on the floor, they’ve figured out exactly which products aren’t worth the money, no matter how tempting the price tag looks. Some of these items might surprise you, especially since they seem like such great deals at first glance.
Those giant strawberries look amazing but rarely taste good
Walking past the produce section at Costco feels like stepping into a land of giants. The strawberries are massive, sometimes as tall as a water bottle, and the price per pound looks incredible compared to your regular grocery store. You might save a dollar or two per container, which makes it tempting to toss a few packages in your cart. But size isn’t everything, and these berries have a reputation problem among people who work there.
The main issue is that strawberries get returned more than almost any other fresh produce item at the warehouse. They might look perfect on the outside, but they often don’t ripen properly or they go bad within a day or two of getting home. When you’re buying such a large quantity, even a couple of bad berries means you’re throwing money in the trash. Fresh strawberries only last about two days on your counter, so unless you have a plan to eat or freeze them immediately, you’re racing against time.
Bananas from Costco stay green forever
Bananas seem like a safe bet anywhere you shop. They’re cheap, they come in their own wrapper, and everyone knows when they’re ripe. At Costco, the bunches are huge and the price is right, so it makes sense to stock up. But there’s something weird going on with these particular bananas that makes employees skip them completely when doing their own shopping.
The problem is simple but frustrating: they don’t ripen like normal bananas. Shoppers have reported keeping them for weeks, trying every trick in the book, from paper bags to adding apples for extra ethylene gas. Nothing works. They stay stubbornly green until they eventually give up and go straight to brown without ever hitting that perfect yellow stage. When you’re stuck with a giant bunch of bananas that refuse to cooperate, your banana bread plans go out the window.
The bakery section packaging creates more problems than it solves
Costco’s bakery smells incredible, and the selection includes everything from croissants to elaborate cakes that could feed a small wedding. The prices make these treats even more tempting since you get way more for your money compared to a regular bakery. But people who work at the warehouse have a different perspective on these seemingly perfect deals.
The biggest complaint from employees is about the packaging itself. Everything comes in containers that are way bigger than necessary, taking up tons of space in your kitchen. One worker mentioned that baked goods packaging was too large for practical use at home. When you’re living alone or even with just one other person, finishing 12 croissants before they go stale becomes a full-time job. You can freeze some baked goods, but items with icing or delicate toppings don’t survive the freezer well.
Soda isn’t actually the bargain it appears to be
The soda aisle at Costco looks like a dream come true if you’re planning a party or just like having cold drinks on hand. Cases are stacked high, and the per-can price seems unbeatable. Most people assume that buying in bulk automatically means getting the best deal, especially at a warehouse store. But this is one area where Costco actually gets beat regularly.
Regular grocery stores and discount chains use soda as what’s called a loss leader. They sell it below cost just to get people in the door, especially around summer holidays like the Fourth of July or Memorial Day. Those sales almost always beat Costco’s everyday pricing, sometimes by a significant amount. Employees who know this trick wait for those sales at other stores instead of loading up at work.
Books sit on shelves longer than you’d think
The book section at Costco features bestsellers and popular titles at prices that undercut most bookstores. It seems like a no-brainer to pick up your next read while you’re already there buying toilet paper and rotisserie chicken. The hardcovers are hefty, the selection includes current releases, and you can save ten or fifteen dollars compared to list price.
But here’s what most shoppers don’t realize: those books have often been sitting in the warehouse for months. The book inventory doesn’t turn over as quickly as food items, which means you’re sometimes buying titles that have been out long enough to be available used or at deep discounts elsewhere. Employees know to check online prices before committing to a book purchase. Your local library probably has it too, which makes spending $20 seem less appealing.
Pre-made meals cost more than making them yourself
The prepared food section offers everything from stuffed peppers to complete meal kits that just need heating. These seem perfect for busy nights when cooking feels impossible. The portions are generous, usually enough to feed a family, and they’re already seasoned and assembled. Just pop them in the oven and dinner is done.
The catch is that you’re paying a premium for convenience that might not be worth it. Breaking down the actual cost per serving, many prepared foods end up costing as much or more than making the same thing from scratch using ingredients from the same store. Employees who are watching their budgets skip these items and buy the raw ingredients instead. A rotisserie chicken costs five dollars and can be turned into multiple meals with way less expense.
Batteries aren’t always the cheapest option available
Everyone needs batteries, and buying them in bulk makes sense since they don’t go bad quickly. Costco sells huge packs that seem like they’ll last forever, and the price per battery looks reasonable. Most people automatically assume that warehouse pricing beats everything else, especially for basic items like batteries that are the same no matter where you buy them.
But online retailers and even some drugstores during sales can beat Costco’s battery prices, especially if you’re willing to buy store brands. The Kirkland batteries are decent quality, but they’re not always the absolute cheapest option. Employees who pay attention to sales elsewhere often find better deals, particularly around back-to-school season or the holidays when stores discount batteries heavily to attract shoppers.
Clothing sizes run inconsistent across different items
Costco’s clothing section offers surprisingly good deals on everything from jeans to winter coats. The prices are low enough that it’s tempting to grab a few items without trying them on, especially since the return policy is so generous. The brands change regularly, which keeps the selection interesting and means you might find something great if you’re lucky.
The problem is that sizing varies wildly depending on which brand Costco is carrying that month. A medium from one supplier fits completely different from a medium from another supplier. Since the clothing inventory rotates so frequently, you can’t develop a sense of what works for your body. Employees see tons of clothing returns because people buy multiple sizes hoping one will work, then have to come back to return the rest.
Gift cards come with restrictions you might not notice
Buying discounted gift cards seems like free money. Costco sells them for popular restaurants and stores at prices below face value, which makes them perfect for gifts or for using yourself. Getting a $100 gift card for $80 is an automatic 20% savings, which adds up quickly if you were planning to spend that money anyway.
But these cards often come with expiration dates or restrictions that aren’t immediately obvious. Some can only be used at certain locations, while others have blackout dates for holidays or weekends. The gift cards sit in the packaging making them hard to check before you buy. Employees who have dealt with customer complaints about expired or restricted cards tend to avoid them unless they’re absolutely sure they’ll use them quickly.
Shopping at Costco can save you serious money, but only if you know which items are actually worth buying. The employees who see returns and hear complaints every day have learned to avoid certain products, even when they look like amazing deals. Next time you’re pushing that giant cart through the warehouse, remember that bigger isn’t always better and that sometimes the best purchase is the one you don’t make.
