I believe in always being prepared. So, it's no wonder that I'm always on the lookout for multi-functional tools that are small, lightweight and are allowed in my carry-on. I recently visited an outdoor gear trade show and found the Mullet, a Gerber product that fits on a key ring and provides more than half a dozen tools that I might need whether I'm on a bike trip, hiking, staying at a hostel, driving, going on a photo shoot, or preparing a picnic in the forest. It's only three-inches long and weighs a little over half an ounce. There's nothing pointy so it won't be confiscated by airport security when I put my carry-on through the scanner. Among the tools it includes is a bottle opener, hex wrench, a couple of screwdrivers, and a wire stripper. Of course, don't expect this to be something for every task that should come up. There's no nail file, or ail clipper, and, of course, no knife. But it's inexpensive, light and small. And Gerber is a company that has a history of high quality tools.