Gadgets you can't live without
Hi! I'm looking for stocking stuffers for my BF. He's a self-employed landscaper/remodeler/carpenter/handyman who owns about every tool I can think of. I'm making him a christmas stocking and I'd love to fill it with items that will make his work easier. They have to be small [to fit in the stocking!], in the $5 - $10 range, and unusual enough that he might not already have one. He is also a hunter and fisherman.
What gadgets do you love?