Sure you can. There's always a person right there at the front door when you walk in. Just ask them where to go and they will point out customer service desk.
Yes. You can probably even buy online.
I believe you can do that, they can also be used at Wal-Mart
Yes. Gift cards can even be used at WalMart.
Go to customer service as soon as you enter. They can help you purchase the gift card
Yes
In order to purchase anything you have to have a membership number and they must swipe your card so if you have a friend that has a Sam's card go with them and make your purchase.
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