Shopping at Costco can easily get out of hand. These days, spending $350 per trip feels normal, and keeping it under $200 is rare. I’ve even had shopping trips that hit $500 or more! Since I go to Costco every week, I end up spending over $1,000 a month on groceries and household essentials. At one point, I avoided Costco altogether because I didn’t trust myself to stay within budget—I was afraid of overspending every time I walked through those doors. But now, I’ve developed a strategy to keep my spending in check. Here’s how I save money at Costco while still getting the best value.
Upgrade to an Executive Membership
Since Costco is my primary grocery store, upgrading to the Executive Membership was a no-brainer. The annual fee is $130, but with the 2% cashback reward on purchases, it easily pays for itself if you shop at Costco frequently. I typically spend over $1,000 a month at Costco, and this year, I received $275.66 in cashback, making the upgrade well worth it.
If you’re a regular Costco shopper, do the math—if your cashback earnings exceed the $60 difference between the standard and executive memberships, the upgrade is a smart choice. Check out Costco vs Sam’s Club: Price Checked 21 Bulk Items- Here’s Who’s Cheaper
Check the Monthly Sales Flyer
Costco runs monthly sales with great discounts on everything from groceries to household essentials. Before I shop, I always check the latest Costco sales flyer to see what’s on sale and plan my trip accordingly. If I don’t need anything urgent, I wait until the items I want are on sale to maximize my savings. This way, I’m not just saving money—I’m also timing my purchases strategically to get the best deals. Check out 24 Best Kirkland Products I Always Buy at Costco
Make a List and Stick to It
Walking into Costco without a shopping list will result in overspending. With so many tempting new items and limited-time deals, it’s easy to throw extra things into the cart. But when I go in with a solid shopping list, I stay focused and avoid impulse buys.
Before heading to Costco, I take a few minutes to plan my meals and household needs, then write down exactly what I need. Sticking to my list helps me stay on budget and prevents me from buying things I don’t actually need. Check out 21 Best Bulk Buys from Costco that Will Last You All Year (and Save You Money)
Don’t Go to Costco When You’re Hungry
There’s a reason behind the advice to never grocery shop on an empty stomach—you’re more likely to buy things you don’t need. This is especially true at Costco, where tempting sampling stations make it even harder to resist impulse buys. After trying that delicious new snack, before I know it, I’m leaving with a jumbo-sized pack of something I didn’t even know existed 10 minutes ago.
The worst part is that everything at Costco is sold in bulk, so impulse buys cost more and take up more space at home. Now, I make a point to eat before shopping and pause before grabbing anything unplanned. If I didn’t intend to buy it before walking in, I remind myself that I probably don’t need it. Check out Costco vs Sam’s Club: I Compared 21 Food Prices- See Who’s Cheaper
Split Bulk Purchases with Family or Friends
Costco’s bulk sizes are a great deal, but sometimes the quantities are just too much for my family of four. To avoid waste while still enjoying the savings, I split bulk purchases with friends and family.
One item we always split is Costco’s croissants—my kids love them, but we can never finish an entire tub before they start growing mold. Now, I’ve worked out an arrangement with my neighbor where we divide the pack, so we both get fresh croissants without any going to waste. We do the same with fresh produce that might spoil before we can eat it all. This way, we save money while also reducing food waste. Check out 23 Costco Items that are a Total Waste of Money for Small Households
Buy Kirkland Signature Products
Costco’s Kirkland Signature brand is a great way to save money without giving up quality. Kirkland products are almost always cheaper than name-brand alternatives, yet they work just as well—sometimes even better. Whenever I have the choice, I go for Kirkland over national brands.
For example, instead of buying Zyrtec, I always get Kirkland’s Aller-Tec. It has the same active ingredient, works just as well, and costs significantly less. Over time, these small swaps add up to huge savings without sacrificing anything. Check out Costco vs Sam’s Club: 14 Major Differences You Should Know About
Only Buy What We Can Finish
One of my biggest strategies for saving money at Costco is shopping smart and avoiding waste. Since I’m only buying for my family of four—my husband, two kids, and me—I have to be mindful of portion sizes. Some bulk deals might look like a steal, but if we can’t finish them before they go bad, it’s just money down the drain.
For example, I’ve learned not to buy bulk yogurt packs. No matter how good the deal seems, we never manage to finish them before they expire, and I hate throwing away food. Instead, I focus on buying items that we can consistently finish without waste. Check out 27 Smart Costco Finds to Save You Time in the Kitchen (Cooking Shortcuts)
Avoid Impulse Buys
One of the easiest ways to overspend at Costco is by giving in to impulse buys—and trust me, Costco knows exactly how to tempt shoppers. Unlike typical impulse buys at checkout counters, Costco’s impulse items can be big-ticket products that make you feel like you need them.
For example, I never planned on buying a Ninja Foodi air fryer, but when I saw the double-basket version in-store, I suddenly felt like it was essential for my kitchen. Check out 19 Surprising Things You Can Buy at Costco
Check My Pantry Before Shopping
Before heading to Costco, I always take inventory of my pantry, freezer, linen closet, and garage stockpile to avoid buying things I don’t need. It’s easy to forget what I already have, and purchasing duplicates in bulk just wastes money and storage space.
For example, I once grabbed a club size Palmolive dish soap on sale—only to come home and realize I already had two unopened bottles. Since one bottle lasts me almost a year, I now have enough dish soap to supply a small restaurant! The same thing always happens with shampoo! Lesson learned—checking my pantry first helps me shop smarter and avoid buying duplicates. Check out 15 Costco Buys That Will Make Your Home Feel Like a Luxury Spa
Limit My Shopping Trips and Time in the Store
I shop at Costco regularly, but I’ve learned that the longer I stay, the more I end up buying. To avoid overspending, I keep my trips short and focused. I always bring a shopping list and try to stop by while running other errands, giving myself a set amount of time to grab what I need and head out.
If I allow myself to wander the aisles, I inevitably find things I didn’t plan on getting—items that suddenly seem like great deals but aren’t actually necessary. Keeping my visits short helps me stick to my budget and avoid impulse purchases. Check out 28 Things I Always Buy at Costco
Skip the Pre-Packaged Produce
Costco’s produce prices per pound can be incredibly tempting, but bulk produce doesn’t always make sense for my family of four. Some items spoil before we can finish them, which leads to wasted food and money.
That’s why I avoid certain pre-packaged produce, like the giant clamshells of spring mix or avocadoes. No matter how good the deal is, we never manage to finish it goes bad. Instead, I focus on produce that lasts longer or items my kids love and will eat quickly, like grape tomatoes, grapes, and bananas. This way, I get the best value without worrying about food going to waste. Check out 25 Easy Costco Frozen Food Staples
Party Supplies and Food
One of the ways I save money is by shopping at Costco whenever I’m hosting a party. I buy paper plates, plastic cups, utensils, napkins, and chafing dishes—all at a lower cost per item than regular stores. For party foods, I buy fresh salads, frozen appetizers, bulk meats, baked goods and party dips like guacamole and hummus. Their cheeses and charcuterie meats are also cheaper than at specialty stores. Thanks to Costco, it’s affordable for me to host parties. Check out 26 Things I Never Pay Full Price at Costco