I like to understand if there is any historical reason not to take a shower everyday.
Historically, the cleanest people in Europe have been Scandinavians and Russians. In these two regions, saunas or banyas were widespread, and regular bathing was a common practice. The plentiful forests in these two places, and easy access to fresh water meant that even the lowliest member of society could afford to clean himself with hot water.
It is curious then, how Poles managed to remain so smelly while living next to the two cleanest people around.
Funny Poles - teach the French how to eat with a fork, but will refuse to wash their ass.