We can put a man on the moon, but we can't figure out how to prevent tangled headphone cords. It's been a problem for as long as headphones have existed, and hasn't gotten any better even as headphone technology has progressed.
But you see, Jaybird has the right idea. Their solution is to just get rid of the cord all together.
The Bluebuds X is the latest iteration of Jaybird's fitness focused bluetooth earphones, and they are easily the best yet. 3 different ear tip sizes, 3 different ear cushion sizes, 8 hour battery life, excellent sound and call quality, micro USB charging, and a neat hardshell case to tote them around in. Not to mention the "Jenna" voice prompts and the fact that they're sweat-proof... The list of cool features goes on and on.
Forget about the cords. We live in a bluetooth world. Get with the program.