1. Before using the dishwasher run the hot water faucet in a tub where the dishes are rinsed or a bucket. When the water is hot then turn the dishwasher on, saves water. The saved water can be used to water plants or rinsing dishes before putting them in the dishwasher. 2. When washing your hands, turn on the faucet just enough to wet them. Can put a bowl in the sink to catch the water before it heats up. Put the saved water in a bucket for plants or ???? 3. Grass or weeds can be killed by pouring vinegar on them in sidewalks.