Old Navy has these flip flop vending machines all around the New York City this summer - why? Who knows. But it's a fantastic idea for women who get sick of wearing heels over the course of a long day and want some solace. You can follow them on Twitter to find the locations - all you have to do to get a free pair is to tweet at them. Fun idea. Even when this promotion is done, can someone please get started on having machines like this available near every club and bar in the city?