Here are some tips for hand washing:
 
You can help by saving more water and energy when you wash your dishes. To help you reduce waste, we have developed a proven method to wash dishes while saving up to 70% of water and 60% of energy:

1. Set up the sink. Fill one side with hot water for soaking and washing. Fill the other basin with cold water for rinsing.

2. Add dish liquid. Mix dish liquid into the hot water only. Avoid creating too many suds, as the suds can retain grease and food soils instead of letting them settle to the bottom of the sink.

3. Follow a pattern. Wash your dishes using this method. First, dispose of leftovers in a wastebasket or compost bin. Next, soak the dishes in the hot water. While the toughest dishes are soaking, start cleaning the easiest dishes. Then rinse each dish by dunking it into the cold water. Finish by placing each dish on a rack to dry.

More tips:
 
Fix the faucet. Even small, slow drips can waste up to 30 gallons of water a day, which sends money down the drain, too. Get any leaky fixtures repaired and make sure to keep your faucets, toilets, appliances, showers, and tubs in good working order all-year-round.

Keep utensils and cookware to a minimum. With fewer dishes to wash, you’ll save water, energy, and time. For example, wipe clean and reuse the knife to chop different veggies. Serve food in the pots you cooked them in rather than using separate serving bowls, and turn the tap on only when you have more than one item to rinse.

Collect cold water. Does it take a minute or two for water to get hot enough for dishwashing? Don’t let the cold water just drain away. Fill a pot or other container, and save it for future use, like for cooking or watering plants.