I'm somewhat obsessive about washing my hands, particularly before eating or after riding the subway. But let's face it: Lots of public restrooms are sorely lacking in soap. That's why I always carry a pack of Crabtree & Evelyn Soap Leaves.
Folded inside a credit card-sized envelope, these thin, sweet-smelling petals work just like soap: You simply hold the leaf in your hands under running water, and it turns into a lathery liquid, then disintegrates as you rub your palms together. Now I never have to worry about being without soap, and this product makes my hands feel much cleaner than when I use those no-wash antibacterial gels. Plus, with the recent liquid ban on planes, you're better off carrying these lightweight soap leaves when you travel than a bottle of gel. You can buy a pack of 20 leaves here for $4; available in lavender and rosewater scents.