A comb holds nails in place when you need to hang a picture, hook or whatever else you feel like hammering into the wall.
The easy way to avoid smashing your fingers or thumbs is with a simple hair comb–just like the ones they used to hand out on picture day in grade school. First, mark the spot where you want to place a nail. Then, hold a comb over it with one hand, using your thumb and forefinger to hold the nail in place. Go ahead, hammer it hard! The comb will absorb the hammer’s blow, sparing your fingers and making sure you’ve hit the nail on the head.