Oh, how fun! I'll play.

I commute with a Jansport backpack and this is what it holds/held this morning:

- repair kit for the bike ie, tubes, pump, patch kit, multi-tool, etc. This all gets stuffed in the right side pocket. (Can't do an under the seat thing, risk of getting it swiped.)
- left side pocket holds deoderant, face wipes and anti-chaff cream.
- top pocket has sunglasses in their case, keys, allergy meds, lip goo and an assorted amount of loose change. Oh and my cell phone.
- front pocket holds work id badge, later holds my RoadID/bike lock key.
- second pocket holds Palm Pilot, and the parts of my lunch I don't want squished.
- main pocket holds outfit for the day, including shoes, the parts of lunch that are Rubbermaid-ed and can get squished, and my desk water bottle. I also stuff my Kryptonite lock in here somehow.

This all seems so much and so heavy, but it actually isn't.