Another thread brought this to my attention. VERY FEW people know how to do this properly. I learned it in the film industry where you will NOT get hired again if you do it wrong. Done correctly, you can hold the end of a 100' cable in one hand, the coil in the other, and throw the entire 100' out straight in one shot. Very handy when you need another mic or speaker in a hurry, setting up for a press conference, etc. This also preserves your cables. If you've ever seen an extension chord where the inside seems twisted inside the outer sheath, this is from improper wrapping around the forearm and shoulder. This is a good video without a bunch of blabber.