One thing you'll have to watch out for if you ever come to Japan are the japanese swat bogs as I call them. These are a right pain in the arse to use and first timers may stand around for a good 5 minutes trying to figure out just how the hell you use them.
The above picture was taken today at Chofu Station (not the Chofu in Tokyo) where I live. You'll notice there is no toilet paper, only a little blue basket. that's because in this station you're meant to buy some tissues out side the toilet from the machine then dump the wrapping in the blue basket if you use all the paper. Actually this toilet is pretty clean concidering the picture was taken at 6:15 pm. 6 years ago however I wouldn't have never dreamed of visiting the train station toilets in Shinjuku or Shibuya up in Tokyo. YUCK !