You can find these badge clips at pretty much any office supply store. Or if you're like me, you have a tons of these laying around from conferences and other events where free stuff is given out.
After using the other cord wrapper methods, this one was the most elegant and useful way for me. This will keep your cords tidy and keep them attached to your bag!
Step 1: Find a clip
If you need to buy them, you can find them at any office supply store.
Step 2: Wrap up your headphone
fold up your wires so they'll fit in the vinyl, make sure you give it enough length so that overall circumfrence is not too thick.