My favorite way is to wrap about 5-6 feet in a skein around my fingers, and tuck it in my back left hand pocket. I usually carry two of these. Then I don't worry about untying it to use it, and I can have it out in a flash.
I know another guy that folds a length in half, loops it around his beltloop, and drops the length of it down his pant leg. You can just grab the top of the loop and pull it out, and the cord is in your hand.
I know I didn't really answer your question, but in my humble opinion, I think these are both better options for carrying cord. Then again I use my cord somewhat frequently in my daily life, or sometimes I pull it out to practice knots when I have a few minutes to kill, so it's not an emergency stash. On the other hand, what constitutes an emergency? I'm not afraid to whip out my cord when someone needs an emergency dog leash, or to play cat's cradle when a kid is throwing a fit. I would be much less inclined if it were all knotted up in a bracelet or the like.