I have just read a daily mail article (sorry, hang my head in shame). It states that over filling kettles wastes £68million a year. I thought they meant the extra electricity to boil it first off, but no, they were talking about the cost of the water.
Now, am I totally alone here, if I have too much water in the kettle then I re-boil it and use it next use. This only happens if someone else has filled it though as I'm well trained in energy saving. Even the bits left over I give my cats to drink so they don't have so much chlorine taste.
Does everyone else empty the kettle after each use?