Known for offering low-cost products in bulk, Costco is a great place for those who want to scrimp and save. But it can be a complete money sink if you’re an indiscriminate shopper. Here is a list of 15 items you should buy and 15 you should avoid at Costco. Read on to save more bucks!

3Buy: Frozen Fruit

If you do want some bargain produce from Costco, head straight for the freeze aisle, where you can really save your pennies. There are a number of organic choices of frozen fruit, and you can take advantage of the large sealable bags to keep it fresh. At the same time, it’s priced much lower than at other grocery stores. You’re looking at only $4.95 for a large, 4-pound bag of frozen strawberries!