Carrying a reusable water bottle is just great... until the bottle's empty and you're left toting around an empty piece of plastic that's not doing you any good at all. Well, Vapur solved that problem with the so-simple-it's-brilliant Anti-Bottle ($16 for a set of 2). This reusable bottle folds up and fits in your pocket when it's empty since the only rigid part is the mouth. A clever caribiner lets you attach it to your belt loop or a bag while it's full. Best of all, just toss it in the top shelf of your dishwasher to clean it!