I've got one of those small mini-fridges which I bought to keep milk in my bedroom for morning tea - but it was too noisy for that. It uses a heat pump and I believe has a warm setting. Also two powered cool boxes for camping - but not to be used off car battery when engine not on. I had to get the AA out.

I have successfully used an insulated food container for haybox type cooking - start a casserole off, keep in container, reheat for serving. Haven't got round to making a haybox yet, but have intended to for years.

The container is also useful for yoghurt. Pour in a tin of evaporated milk. Fill up with boiling water. Add a spoon of previous yoghurt. Put the lid on. Leave till set.

I did have one of those non-electric waffle iron/sandwich makers for a while, and an electric grill, but didn't use them often enough to make the space worth it.

Penny