This Green Tip is one of the oldest in the book, but it’s true! Did you know shutting off the water while brushing your teeth can save up to 4.5 gallons of water each time? There are lots of ways to save water in your home: consider purchasing low-flow aerators for your faucets and installing water-efficient shower heads (just like those nice spray ones they have in hotels). This simple change will lower water consumption in any home by nearly 50%. And no, this doesn’t mean the water will trickle out, you probably won’t even notice the difference.