I sometimes ride downtown at night and lock my bike up, usually in sight if I can. I have a headlight, a rear flasher, a few tools, and a seat bag that I store all of that in. I don't really like leaving it all just sitting on the bike, but I don't want to take the seat bag with me as that's a bit awkward. Does anyone have a better solution for keeping the small things safe? I've considered abandoning the seatbag and just riding with a backpack/messenger bag all the time.