If you struggle with cravings when you know you're not truly hungry (who doesn't?), this clever "beauty tip" just might help you regain control. Distract yourself from the munchies by giving your nails a manicure (even if it's just a fresh coat of clear polish). Once they're perfectly painted, you won't want to smudge wet nails by reaching into the bag for a handful of chips or cookies. By the time the polish has dried, chances are your urge to snack will have subsided.