nbs,
"Roadie coil".....coiling the way sound crews and TV crews do. It's called "over and under":
Disconnect cable and stretch it somewhat out on the ground in front of you.
Hold just behind the plug of the cable between the thumb and the index finger of your right hand.
Reach and take the cable with index/thumb of left hand, and pull the cable towards you to have slack on the ground, and enough to make a loop.
Start bringing your left hand toward your right hand while 'rolling' the cable to the right with your left fingers, enough that a loop appears. This is the 'over' loop. Hold loop with right fingers.
Grab cable with left index/thumb again. This time as you bring your left hand towards the right, you 'roll' the cable to the left; your left hand will turn with the palm up by the time the loop is done and the right hand receives the loop. This is the 'under' loop.
Go back to the first one and repeat and so on.
It's one of those things that sounds very complicated when you try to put it into words without pictures, but that becomes absolutely part of your backbone when you do it enough.
The key is that the cable should be relaxed when you do it. Although the ideal is over/under/over/under all the way, if you have a cable with bad wrapping memory, don't worry if you have to do 2-3 overs or unders simply because the cable is "used to it", but always strive for o/u/o/u as much as possible.
I hope this makes sense; I can coil over/under almost in my sleep, but trying to describe it is something else..
Best,
C.