"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." You can’t very well bring your tool chest everywhere. And if you need a screwdriver or scissors on the go ...

Keychains can get weighed down with all sorts of stuff, from baubles and knick-knacks meant to express our quirky individuality (I have a tiny Starscream on mine!) to, well, even more keys. Tools and ...

We may receive a commission on purchases made from links. Loads of people carry a smartphone with them wherever they go, but there's at least one other thing that's just as -- if not more -- important ...