Giant Sandless Beach Mat - Sand and water are instantly filtered through as soon as they fall on this mat's surface - and it can't re-emerge back through the bottom! Now you can enjoy the beach without the sand!
This is such an amazing idea. I've already thought of two things it might be useful for: a) No headphone cords when running. b) No headphone cords if you fall asleep (just in case they get wrapped around your neck)