[MargaretR]

I agree that all but one of the gadgets mentioned is a waste.
When it comes to kettles - there is a lot of energy wasted heating more water than is
needed. I could just put one cup of water in the kettle at a time but is anyone doing that?

When my kettle needed replacing I got a Tefal One-cup model.
I like it because it removes the need for me to lift a kettle of boiling water, (which is a hazard due to loss of grip), and I dont need to wait for it to boil, because it is hot 'on tap', and only needs filling up once a day.

PS I didn't pay that much for it after googling