Third Hand Nail-Tac-Screw Holder

The other day my wife and I was building a book case and she,
for some reason, enjoys nailing with a hammer (most likely because I don’t work well with others LOL) anyway, she came up with a clever idea that eliminated me holding the nails for her. Check this out; she used a refrigerator magnet that has a clip, and holds her nails right where she could pick one off and nail, then get another one quickly.