1. Know the return policy
Costco has one of the most generous return policies around. So, if you’re ever unhappy with a purchase for any reason at any point, you generally can and should ask for a refund or replacement.
As we explain in “15 Stores With the Best Return Policies“:
“Costco says it stands behind its products 100 percent. You can get a full refund on anything. The only caveat is that some types of items must be returned within 90 days of purchase for a full refund.”