Slept 4 hours. Rode 3 times on a Segway Human Transporter. Found out that: a) b12 wished there were formal adult dress shoe versions of Heelys, and b) b12 owns a handkerchief which has the Tokyo subway map printed on it (he brings this handkerchief on every trip to Tokyo cos he doesn't carry a map). Am way too tired now, and there's still work tomorrow. Woohoo.