In Japan we drive on the left hand side of the road.
With the exception of Tokyo and a couple of the other bigger cities, it is usually a rather pleasant experience due to the politeness of most of the drivers!
If you hear a car horn usually it is just someone offering to let you in!
Space is always at a premium so they have developed some interesting solutions.
Have a look at this automatic storage system: http://www.metacafe.com/watch/687422/japan_amazing_car_parking_system/

We are interested in hearing other people's experiences of driving in Japan so please tell us about it