I know this is not exactly a hot deal but it is a great value-add nonetheless. Sam's Club now allows members to checkout thru the app thus avoiding the tedious line to checkout.
This is my major gripe with Costco -- the long lines and no self-checkout lanes. Because of this I'll probably not renew Costco, just Sam's.
Get App Here:
[Android Reviews = 4.6 Stars]
[iOS Reviews = 5 Stars (Current Version)]
additional info at our blog post