The PetiteKey comes in 8GB, 16GB, and 32GB for $15, $23, and $40. It's waterproof down to 100-meters, scratch-resistant, and tough. There's a two-year warranty, should you want to test that toughness out. But best of all, it's much tinier than its cute-but-not-as-useful ancestor, the iamaKey: The little USB drive weighs 0.25 ounces and measures just 1.5 inches long. In other words, it's smaller and lighter than most actual keys, which means it's actually convenient enough to carry with your everywhere. More here.