Barry, you are a man after my own heart. I pour a left-over cup of water into a plastic bottle and use it to water my plants. I love to get a second use rather than just pour it down the drain. Perhaps it comes from being a Yorkshire lass. :0)
Hey, you're not a Yorkshire lad are you?
Here's another tip for saving on the leccy. Don't stand at your fridge pondering what it is you're looking for. Open the fridge door and grab your intended as quick as you can, then shut the door pronto. Saves the warm air from the kitchen going into the fridge (you don't want that to happen as it makes the fridge work harder to get back to fridge-temperature).