Organizing my knapsack, using Morgenstein's method

What's working? Loose change in the top outer pocket; lunchbox in the outer net.

What's not working? Plates with food on it get stuffed into the inside (yuck). Papers enter the knapsack and never leave. Plastic bags are crammed into nooks and crannies. There is no rhyme or reason as to what goes where, or what the spaces are for.

What items are most essential? Loose change, lunchbox, bus schedule, walkman, documents in transit.

Why do I want to organize? Health and sanitary reasons. Having a lightweight pack so it's easier on my back. Having an orderly pack so it's easier on my brain.

What's causing the problems? A "technical error": Items have no home.

Storage units: outer net, outer top pocket, outer left pocket, outer right pocket, PDA pocket, cellphone pocket, pens pocket, chamber 1, chamber 2, chamber 3, inner top pocket

Assignments: Loose change => top pocket, lunchbox => outer net, bus schedule => chamber 1, walkman => chamber 2, documents in transit => chamber 3

Estimated time: 20 minutes