Previously I've managed to pick-up a few team issue musette bags used to give lunch to bike racers in competition events, (and often tossed by riders after the they go through a feed zone).
Race musettes are usually very lightweight cotton or nylon. They make a very handy extra bag if your traveling light on a road ride, easy for carrying extra food or a camera and/or stuff in a jersey pocket. I used one of these race musettes to carry a small digital camera and a few extra snacks on a climb up Monitor Pass previously that worked out well. I've been looking for something a little heavier (that will last) and Archival Clothing's musette looks good.
