A Few Little Things About Japan I’m Not Fond Of
Public Restrooms: First of all, there aren’t very many. Second, when you do find one, it may or may not have a hand dryer, and almost certainly no soap. Paper towels, in my experience, are never provided.
Napkins: Speaking of paper products, Japanese napkins are nearly useless, when they’re actually napkins at all. Many restaurants simply provide a cheap box of tissues, and everyone just pretends they’re napkins. In train stations and subways, toilet paper is also not a guarantee. (My personal opinion is that they use most of their lumber to make 割り箸 and don’t have enough left for napkins and TP.)
Public Trash Cans: I don’t mind separating my trash, but finding places to put one’s trash in public is a problem. Near drink vending machines, there’s usually one receptacle for bottles and cans (often overflowing), and outside of convenience stores, you’ll nearly always find a bank of trash cans, but that’s basically it. Carry it with you.
Free Soda Refills At Restaurants: Nonexistent, from what I’ve seen. And asking for no ice to get more soda doesn’t work; the machines pour a set amount per cup.