Silly question? Everyone knows how to use a hammer, right? Well, we are here to tell you that you might not know all the neat tricks you can do with a hammer. Ever been in a situation where you are holding a piece of wood with one hand, the hammer in the other and no third hand to hold the nail while hammering it in? There is a simple but effective solution to this problem that many people do not know about, and here John Heisz shows us exactly how it is done. A must see for everyone that owns a hammer!