The Princess Royal does not like socks, so she seldom wears them. This results in a distinctive fragrance in her "sneakers." And her sneakers have to be replaced every 3 months or so. Since the right foot is a size smaller than the left foot, two pairs of shoes must be bought in most cases. Hopefully one day she will embrace socks.
BTW - If anyone has a foot or shoe fetish, I wouldn't mind sending you some of her used or unused shoes if you'll pay the postage.