Copenhagen two too

Since having the electricity monitor fitted some interesting facts have been revealed to us. Firstly how expensive it is to use an electric kettle. New policy in BBCB household is now to only fill the kettle for what we need and switch it off when it boils. Don’t wait for it to switch off automatically. Secondly the dishwasher although ours is an A rated machine it’s still greedy. We now only use it every other day, washing up by hand the odd few items that the new policy does not cover.
Best idea I’ve heard though is youngest daughter who has introduced a ban on using her dishwasher if the grandchildren leave unnecessary lights on around the house. They are instead made to wash up by hand. Strangely enough I have not heard any complaints about this policy. Perhaps they are at last turning off unnecessary light. More likely they’re blaming Dad.
Any other ideas? I like the idea of saving money whilst saving the planet.