MiniMoon ^ I also try not to spend longer than five minutes in the shower.^
The best way to save water in the shower is to have a "Navy shower": get wet - turn off shower - soap/shampoo where necessary - turn on shower to rinse off - turn off shower.
Repeat if using conditioner.
Don't leave the shower continually spraying while you are soaping.
A friend whose husband was on Naval submarines gave this advice.
A famous matador gored by bull!





