No discount on purchases. No "close-to-expired" food to take home either.
I found out that Costco has a high-standard for their groceries. For example, cooked chicken can be left out for a max of 6 hours on the shelf, but at Costco, shelf life is 3 hours. After that, they remove from shelf and use the chicken to make chicken pot pies, salads, etc. Interesting, huh?
Oh, and Costco knows exactly how many flats of food to order and even though they throw food away, it's very minimal.