Finding a place to keep your cash, ID, and house key at the beach or carnival can be a pain when your outfit has no pockets—which is why you want to stow them in the sole of your sandal. The Reef Stash sandal has a pull-out storage area in each sole big enough for some bills, a credit card, and even a key. We'd love to see someone mod a non-Reef pair of sandals to achieve the same end. (Tried it? Tell us in the comments.) Just make sure you don't kick off these suckers while you're on the Ferris Wheel.