I was shopping at a Giant Eagle grocery store in Frederick the other day. They have a service called Personal Shopper. It is actually a portable self checkout unit. When you come into the store there is a bank of handheld scanners. You scan your Giant Eagle club card and one of the scanners lights up. You grab the scanner, a cart and a bunch of bags and scan your products as you go along. You weigh produce and it prints out a barcode at the scale that you then scan. When you go to checkout you just scan a barcode at the counter and it downloads all the information. You just pay and go. Very cool.