Install pipe insulation
This tip saves water and energy. By keeping the water warm in the pipes, you don’t need to run the tap as long to get hot water. So, you save the water, and the energy to heat the water.
Pipe insulation is available at any hardware store. Check your pipe size (1/2 inch, 3/4 inch, etc.) and measure the length you need. The insulation just slides on to the pipe.