One of the easiest ways to save water at home is to install low-flow fixtures in the bathroom. Not only is it easy to find low-flow showerheads, you can find even greener options that have a pause button on them. This button shuts off the water while you lather up or add conditioner. When you're ready to rinse off, you just hit the button, and it's ready to go at the right temperature. When shopping for showerheads, look for ones marked WaterSense, which are approved by the Environmental Protection Agency. This mark helps you find the greenest and most efficient choices in stores and online.