I think a lot of it is what you get used to as background levels. Nowadays most people take a shower every day, I was used to washing "the bits that show" every day and a bath once a week. Go back even further and hot water is something you have to boil up in a kettle.can`t remember people smelling when i was young but can remember walking from gower street school to swimming baths and passing hp sauce one side of victoria road and ansells brewery on the other what a smell that was