Just to put a different perspective on this, here are some things to be considered polite:
- On the train, giving up your seat for elderly and parents with small children (MAJOR POINTS)
- At meals with alcohol, be mindful of other's sake/beer glass and fill (preferably holding the bottle with two hands). Reverse is nice too.
- Depending upon your company, place chopsticks on the little "holders" when not in use.
- When eating soba or noodles in general, it is okay to slurp, as long as you don't hurt yourself in the process.)
All the above you mentioned is in fact borrowed from the west or the civilised world, rather than originally Japanese.
You put it in such a way as you Japanese invented all this, hmmm, funny. Come on.
You admire the west, which is good, but you are still a pagan nation equipped with modern technology.