My top tip is electric blanket.
4p/hr to run. Put it on an hour before bed, get in to a warm bed, then switch it off if you want. We use them at home and in the static.
Ours works with out setting the time on the clock, so you can have it at "00:00". Just press at button once for a minute...........get a modern one...hahaha
Just rmember to blow out the candles in the kitchen when you've done...........
I was talking about the oven, I switch the microwave off.