Yes you can. You can even get a one day membership for free if I'm not mistaken.
Not sure if you can explore without a card but checking at customer service desk would be the thing to do.
Pharmacy services are also available without a membership.
Yes, you can look around the store. On the exit side you can purchase fast food with out a membership. Just tell the associates what you plan to do and they may even provide a tour.
Yes, you can.
Yes. That's what I did
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