Carrying a mess kit aint so strange, though yesterday all I had in here was-
Running shoes
Fleece
Locks (2)
Multi tool
extra base layer (Reebok recommended by Josh)
Gloves for running, wore my lobster mitts on the bike.
Dry fleece cap for the run
Lights that I never used

Barry-Not sure , but on the beer ride I heard some strange noises coming from that thing, and I think at the end of the Monument ride I was pretty sure I saw one of the Hooters girls perched on that skateboard gizmo waving goodbye as you headed down 33rd. You could hide just about anything in there.