So far I've been holding my mp3 player in one hand and my keys in another, as however tight the pocket the keys jingle. The main problem is that I need 3 keys to get back into my flat, one in particular being chunky. I have been looking for an armband but they either seem to be phone/ipod holders with a tiny slot for one key or arm wallets where you can't access the mp3 player.
Can anyone recommend an arm band that would hold an ipod touch (still allowing use of the screen) but also a pocket for a small bunch of keys? Or would such a thing be too big for an arm??