Here’s one pain in the butt thing about riding a bike: what to do with your helmet. We don’t always have a bag big enough to store it, we’re not always going somewhere  with adequate helmet storage (like the office), and we’d rather not carry it around everywhere, like a football. Enter Helmetlok ($22). It’s a combination lock on a carabineer you can use to lock your helmet to your bicycle—or other stuff, whatever.

This is a test