Consumer Reports says that the supermarket self check-out line is better on your wallet and your gut. "You'll find fewer snacks," they write, "and because of the shorter wait time, you'll have less time to contemplate a snack attack." There's even a study that shows impulse purchases dropped by nearly a third for women and a sixth for men when they chose the self check-out line. You also get to play with the scanner, touchscreen, and bag area, which is a lot more fun than just standing around. (That's right, "bag area.")

"Self-checkout, cut calories and costs" [ConsumerReports]
(Photo: Simon Shek)