Sam's Club Open House this weekend only (August 3, 4 & 5). Enjoy Members-Only low prices! You can shop at Sam’s Club for free with no 10% service fee! No coupon required! The only thing you need to show them is your identification at the door. This is open at all Sam’s Club locations, but to be on the safe side you could call your local Sam’s Club store to be sure they are participating.
Alas, there are no Sam's Clubs in Michigan's Upper Peninsula.