Save on water and water heater costs
With the high cost of utilities, I save by installing a shut-off valve on my showerhead. I get wet and use the valve to pause the water while I soap up, then turn it on again to rinse. Repeating this action between shampooing, conditioning etc. You can save a LOT of the cost of water and the cost of hot water heater energy use. I have been doing this for years and it really adds up. No more wasted water.