Discover how to save big at Costco with these six popular items. From Kirkland Signature items to unbeatable gas prices, learn how to maximize your membership for the best deals.

Costco is a place of savings a'plenty, particularly around the holidays. Avoid these errors to keep those savings in your pocket.

Costco is known for offering bulk savings on a variety of items, but not everything on its shelves offers the best value. While the store can be a shopper's paradise, there are certain products that may not live up to expectations or may not be worth the investment.

Reviewed by Dietitian Victoria Seaver, M.S., RD I’m a Costco girlie. From clothes and electronics to food and supplements, I spend enough at Costco annually that my upgraded executive membership pays for itself.