Here’s a nifty multi-purpose gadget: the Cord Lock Light from Black Crater. As the name implies, this is a miniature LED light embedded within a cord lock. Weighing just a quarter of an ounce, the Cord Lock Light can replace a standard cord lock on your jacket, pack, or sleeping bag.

The $10 light runs on a single watch battery and has two brightness levels, plus a flashing mode. The switch to operate the light is separate from the cord-lock mechanism, so you’re not likely to inadvertently turn on the light when  adjusting the cord lock. The Cord Lock Light is a bit larger than most standard cord locks, and not as bright as most dedicated lights, but it’s a novel way to keep a backup light source handy.