Who hasn't looked at a surge protector full of cords from various electronics and spent the next twenty minutes trying to figure out which cord goes to which thing? For some of us, there may even be swearing involved.
Reuse the bread fasteners you'd otherwise toss in the garbage to create mini-labels.
I need to collect a few more to finish up this row of cords, but already, I'm thinking this is brilliant! I'll have to save my swearing for other things, like stubbed toes and cats waking me up at 3:00 in the morning.