Travel today to Portland for Rose City Comic Con, and I’m doing an experiment to see how compactly I can travel with all my tech and four days of clothes (three days of the convention, one day of travel back; obviously for the travel today I am already wearing my clothes). Before you is the current attempt: A mini travel backpack designed to fit a Mac Air plus various tech accoutrement, and a small travel bag with four days of clothes (plus an extra day of underwear and socks, because som...