alt Hacker NewsJapan has no trash cans. (reaction to the japanese subway attacks)
Returning to the US from japan you notice. Japanese bathrooms don't have trash cans, so no paper towels. In the US, the bathrooms have trash cans overflowing with paper towel waste and it is quite a difference.
One thing I noticed is that I tended to accumulate a lot of trash in Japan. Connivence stores were plentiful and the food was tasty, but it was all wrapped in plastic.
Where does all the trash go? More often than not, I ended up carrying trash in a backpack to throw away at my hotel.