Crumpled City Maps
To hell with folding. If you're not feeling up to using Maps on your smartphone or tablet — or just don't want to ring up a huge international data bill — then consider packing one of these Crumpled City Maps ($15) on your next trip. Made from some sort of special technological material, these full-color maps can be opened and closed in just two seconds, provide details about streets, monuments, museums, and more, weigh only 21 grams, are 100% waterproof, and cram nicely into their included carrying pouches when you're tired of looking like a tourist.