So you know to turn off the water when you brush your teeth, you flush the toilet with your bath water, water the house plants with leftover water. Do you use dish water to mop the kitchen? If you use a dishwasher, it may be harder to do, but on the occasion when you make up a pan or sink of dish water, don't let it go to waste. If there are suds left, it will clean your kitchen floor. Saves water and soap.