Of all the shoes you own, it's probably easiest to part with nasty old flip-flops. You didn't pay much for them to begin with, so you don't think twice about tossing them in the trash when they're broken or worn out. But you should think twice. Especially now that you can recycle your flip-flops at any Old Navy store! In an effort to further reduce waste, Old Navy has partnered with TerraCycle, Inc., in a month-long drive to collect used flip-flops and recycle them into four public playgrounds around the country. Stop by any Old Navy store between now and May 21 and deposit your used flip-flops into designated collection bins. This is the first time a nationwide retailer has initiated a large-scale effort to collect and recycle flip-flops.