I decided I was tired of standing at the sink running the water down the drain, while I waited on it to change to hot water to use. My goodness what a surprise I had when I used a pitcher to catch the water! I was wasting almost a gallon every time I was waiting on the water to get hot. Now I keep a pitcher nearby, and I save the water to use during the day.
Calculating the savings: 2 gallons a day (AM and PM) = 14 gallons in one week or 14 x 52 weeks = 728 gallons a year I was throwing away. Now I simply use the pitcher of water to make tea, coffee, or to water plants. I cannot imagine how much the gallon of water was costing me while I waited on the water to turn to hot. This is the most simple "going green water" solution I have come across yet, and all you need is a pitcher.