Anyone who uses the standard in-ear earphones that came with their iPod will know that they can be uncomfortable and aren’t exactly the best quality. For some people, in-ear models just don’t stay put at all.

If you want the convenience of in-ear earphones without the annoying side effects, ChaosProjects.com shows you how to upgrade those cheap earphones for just 80 cents. All you need is a leather punch and some foam ear plugs.

Basically, you remove the plastic ear “comfort” caps from the earphones. Then squeeze the foam ear plugs down, punch a 4mm hole in the middle with the leather punch, and fit them over the earphones. And there you have it: an ingenious yet simple way to keep those bad boys in your ears while blocking out most external noise.