[quote name='EggViper']Anyway, you can get in and check out the store without a membership, although u'll need one to buy anything. Just go thru the exit as if ur walking in to actually get a membership or return something, they don't check on that side. Then just walk in thru the check out counter.[/quote]
Well, I don't know about Sam's Club, but Costco is vastly different at mine. Maybe anyway, it depends on whether my coworkers or I really care at that given point. However, if you are a male, roughly 18-30, we will ask your card every single time.
In another case, say that you're going to the pharmacy (in Costco anyway) and they'll have to let you in. Chances are however that they'll sick one of our "loss prevention" guys to watch you but so long as you don't steal anything or act too suspicious you'll be fine.