UNLESS you work a blue collar job, or any other job that requires you to be outside the whole time, I don’t see the point in showering every day. Especially if you work from home or in a building with AC. It seems excessive and is also a waste of water. But do what you want lmao.
Showers really should work like dishwashers. Basically fill a reservoir, filter, re-heat, and recirculate that water a few times. Could also slowly drain and replace a bit of it throughout or have discrete wash/rinse cycles.
Most of the water used when I shower is just standing there because the hot water is relaxing.
Discrete fill drain cycles uses less water than continual dilution.
Maybe if you had dried on crusted food.
Navy shower also helps break the standing there mentality.