I landed in Tokyo yesterday morning after an all-night flight from Bangkok on which they didn't want us to get any sleep, and looked out the window at a wet, grey Narita airport. Too tired to appreciate being in the first world, and more concerned with the cold after 5 months in the heat, I made my way to my hotel. There, I discovered they wouldn't let me check in until 4pm so I headed into Ginza to distract myself.