I take a shower daily unless one day I am not going anywhere or planning on doing anything.
I do shower when I get into the garden or doing coop chores stripping out the coop......developed a ring around the tub after three days being in the garden. Or after mowing lawn. Nothing like a fresh clean non sweaty body!
On the other hand, my hubby,
when he was living at home, he would only take a bath once a week, washes hair if lucky once a week or up to three weeks. Funky smelling! I told him if he ever wants to marry me, he BETTER change the hygiene methods. Now he has been taking showers nightly after work and ahem! They told me about lye soap, yeow! Ivory soap was common.
My father and mother used to tell me once a week baths were common on Sundays, sharing from the oldest to the youngest. Ladies wash themselves with rags nightly or sponge bath. Men forego baths and rarely wash themselves.
You simply can not waste water. When the bathwater is done, sometimes they would soak laundry in it before taking it to the washing board or wringer to do better washing.