If you already didn't hear about it, here you go: there are flip-flops, which stick to your feet, without any other belts or restraints. They are called topless Sandals, and the world is apparently going mad about it. Here's a video:

This sounds like a really fun thing to me, although I would only wear it round house, because I would feel totally weird wearing it to the public.

There is one good use: these are perfect for freshly pedicured feet, no smudges no way! Anyhoo, there's a big selection of colorful topless sandals, if you want to give it a try. Let me know how it feels!