Always number the cable. Usually with a sharpie. Some customers have asked me to label with a label maker.
If you don't you create the kind of headache I am dealing with right now for a non-profit (see thread in Installers) Numbering also helps me mentally. I can keep track of where I am in the project. Pulling cable kind of gets monotonous and knowing you only have 128 runs to go helps.
Corwyn
