We can spend a lot on our headphones, & they often end up getting tangled, or ruined in our bags. Here is an inexpensive solution that couldn't be more simple that I found on iheartorganizing's blog.
Begin by going to the travel section of your local super store, and purchasing a travel pack of Q-tips in the color of your choice. I got mine for 97¢.
Next, remove labels from both sides of plastic container, as well as the Q-tips.
Loosely coil your earbuds (winding them tightly can ruin them), & place in container. At this point your case is complete- they're protected, tangle free, and ready to throw in your backpack or purse.
One last optional step, if you wish to personalize your case, add a sticker of your choice, as I did here. You can also use this idea for cables or a cleaning cloth. Enjoy! Thanks iheartorganizing!