I'm on week 5 of the Couch to 5K, which I'm doing on a treadmill. This is fine as I can watch telly at the same time. But when the time comes for me expose my flab to the world venture outside the house, I want to listen to music. So my question is this - where do I put my mp3 player? I have leggings (no pockets) and a vest (ditto). Does everyone carry a bumbag or something? Or can you get special holders for phones/ipods? Thanks for any advice.