You can get affordable prescriptions, alcohol and more, but you'll have to shell out for a Costco card for food court privileges.

Costco is a great place to shop for all your home needs, but if you make any of these mistakes, you could miss out things like saving money or delivery perks.

Costco has plenty of products that win shoppers over, but there are a few that fall short of expectations. Sometimes it is the taste that misses the mark, and other times it is the quality or freshness that leaves buyers unimpressed.