If you’re an active person and a smartphone owner, I have two products to recommend. First is the Spibelt, an impossibly comfortable sports belt with a stretchy pouch that can accommodate keys, cash, your phone and other walker/runner/biker essentials.
The second is the Jabra Sport Bluetooth stereo headset, which lets you listen to music and FM radio and make/take calls while you’re exercising–all without wires. (Well, sort of.)