Saw this on pinterest, tried it, and am obsessed. Let your hair air mostly dry, then slap on an elastic headband. Wrap strands of hair around it and let it finish drying. Unwind, beachy waves. Except I'm still perfecting wrapping bigger chunks of hair around at a time so I end up with waves instead of Shirley Temple style ringlets. Otherwise, it's ridiculously easy and even cute in the meantime. And you can sleep on it.