Good Washing
Washing machines and dishwashers use water, energy and washing detergents so an efficient approach can save a lot of each. And don't forget there is the other energy consuming activity of washing yourself. 
1. A good starting point is to choose your machines carefully and opt for the most energy efficient available. Look out for A*** rated versions or those with an ‘energy efficient recommended' sticker and see the Good Shopping Guide for advice.
An energy efficient dishwasher could save up to 40% of energy consumption compared to less efficient models. Then it is all about using the machine sensibly to make sure it is not wasting any unnecessary energy.
2. Most of the energy consumed by a washing machine or dishwasher is used to generate heat. Most clothes can be cleaned at 30C and by using the lowest wash temperature possible you won't be making a sooty carbon footprint with your clean wash. On a dishwasher always opt for the coolest setting that will get the job done, and if there's an economy setting use it.
3. Only use the washing machine or dishwasher when you have a full load. ‘Half load buttons' are deceptive and, although they might save some energy, they don't halve it.
4. Skip the pre-rinse or the pre-wash. Most dishwashers are powerful enough to get everything off without the use of this feature.
5. Let it dry naturally. Put clothes on a line or rack rather than use an energy-hungry tumble-dryer. But don't hang clothes on radiators as this stops the heat getting into the room and causes damp - try to use an unheated room and open the windows. Instead of letting your dishwasher dry the dishes using electric heat or a fan, open the door at the end of the cycle and let them air dry. Or leave the dishes to dry overnight so they'll be ready for you when you wake up.
6. Try to use washing products that are natural, biodegradable, and free of petroleum and phosphates. Lemon juice is a good replacement for bleach and white vinegar can be used on stainless steel, windows and mirrors. And for scrubbing sinks, toilets, baths and even cookers try baking soda as a mild abrasive.
7. Take a shower instead of an energy-guzzling bath but watch out for power showers. A five-minute shower uses about a third of the water of a bath, but a power shower can use more water than a bath in less than 5 minutes. Remember, all this water needs heating unless you're a fan of a cold dousing in the morning.
8. And if you can't go without a good soak then share your bath water or if you want a really green and outdoor experience try a Dutch bathing tub - but remember to share!