I have a hip pack I picked up at radio shack some time ago, that just happens to have a handy pocket designed to hold a cell phone or radio, and almost everything else fits in the 'outside' pockets, leaving the main pocket available for battery power so I can take things for a walk. Handy for helping out on a walk or run, works well on a bike. etc. Not quite so useful in a car, but it might work out to have it sitting on the dash.