9 Costco Products That Aren’t Worth the Hype (Skip These!)

Costco is a fan favorite for a reason: giant packs, tasty samples, and bulk savings galore. But not everything in the warehouse deserves a spot in your cart. Some items cost more than they should, others take up way too much space, and a few just don’t live up to the hype.

This eye-opening list shows how loyalty can cost you more—and why comparison shopping still pays off, even at your favorite warehouse club. Here are 9 Costco products I always skip—and smarter alternatives that save money, time, and storage space.

1. White Vinegar

Why It’s Overrated:

Costco’s jumbo jug of white vinegar is cheap per ounce—but it’s heavy, spills easily, and is annoying to store and pour.

What to Do Instead:

Buy a 1-gallon jug at your local grocery store or Walmart. The price difference is small, and it’s far easier to manage.

2. Manual Toothbrushes

Why It’s Overrated:

Costco’s selection is limited and often doesn’t include ADA-approved options. If you’re picky about your oral care, you’ll find better choices elsewhere.

What to Do Instead:

Shop for ADA-certified manual toothbrushes at Walmart, Target, or online. Stick to Costco for electric toothbrush heads—they’re a better deal.

3. Shampoo

Why It’s Overrated:

Even Costco’s house-brand shampoo can’t compete with ultra-budget options like Suave Daily Clarifying Shampoo, which costs under $2 at Walmart.

What to Do Instead:

For no-frills shampoo that works, head to the drugstore or Walmart. Save Costco space for the conditioner, if that’s your thing.

4. Trash Bags

Why It’s Overrated:

If you need large or specific-sized trash bags, Costco’s options can be limiting—and more expensive than you’d expect. Aldi’s Boulder brand offers a better value for large drawstring bags.

What to Do Instead:

Buy your trash bags at Aldi and skip the bulk packs that barely save you money.

5. Grains (Rice & Quinoa)

Why It’s Overrated:

Unless you’re feeding a large family, bulk bags of rice or quinoa are tough to finish before they expire.

What to Do Instead:

Smaller bags at Walmart or local grocers are more manageable—and they often carry house-brand organic options.

6. Cereal

Why It’s Overrated:

Name-brand cereal may seem like a deal in bulk, but Aldi and Walmart’s store-brand versions are consistently cheaper per ounce.

What to Do Instead:

Switch to Millville (Aldi) or Great Value (Walmart) cereals. They’re budget-friendly and taste just like the big brands.

7. Sandwich Bags

Why It’s Overrated:

Costco mainly stocks Ziploc bags—which are solid, but pricier than Walmart’s Great Value alternative. Plus, you’re stuck buying a huge box.

What to Do Instead:

Buy only what you need with budget store brands, or go reusable for an even better long-term solution.

8. Laundry Detergent

Why It’s Overrated:

Kirkland Signature Ultra Clean is effective, but the 1.5-gallon jug is heavy, messy, and takes up loads of space.

What to Do Instead:

Try a concentrated brand like Puracy. It’s compact, efficient, and less prone to spills.

9. Shaving Gel

Why It’s Overrated:

Costco’s selection is limited and often includes heavily fragranced formulas—not ideal for sensitive skin.

What to Do Instead:

Target’s Up & Up Therapeutic Shave Gel is budget-friendly and gentle. Bonus: It’s fragrance-light and easy to find.

Final Thoughts

Costco can be a goldmine for smart shoppers—but even the best warehouse deals have their weak spots. From cereal to shampoo, knowing which items to skip can help you avoid overpaying or overstocking. The key? Don’t let loyalty blind you. Comparison shopping and a little strategy go a long way—no matter where you shop.

Ready to trim your cart and stretch your dollars? Keep this list handy before your next Costco haul.