By the way, the house brand at Sam's Club is Member's Mark. It seems the only place you find Sam's Club branded merchandise is oddly enough, at Walmart.
A neat idea - and an invitation to shoplifting, or at least being inadvertently accused of it. At first, it worked great, catching the bar codes and adding the items to my "cart". But for some reason, one item, a block of cheese, kept disappearing from the online cart, even as it remained in my physical cart. I noticed this as the item count kept going down. I scanned that damn cheese three times, it erased itself twice.