Have you ever rolled a cable? Maybe I should ask, how many cables do you roll a day? Don't forget the headphones, laptop power cord, extension cords, hoses, etc.
And what happens every single time you go to unroll one of these cables? They get all tangled up. Guaranteed.
Well it doesn't have to be like that. There is a simple way to roll cables that is easy, avoids tangles, and lies well. Well, actually, two ways—one for big cables and one for small ones like headphones. Oh, and did I mention it's good for the cables, and the way you have been doing it is bad for the cables?
For the big cables, watch this video. Go on, I'll wait.
For small cables, like headphones, raise your index and pinky fingers and wrap the cable around them in a figure eight. The figure eight nature does the same thing as the over/under technique for larger cables, preventing tangles, and it also makes a nice compact easy-to-stash roll. See this lifehacker article