OK, so it's not as clever as keeping dishes in the freezer (top tip!) but I'm quite pleased with myself, it's not often the brain functions these days! My electric steamer is broken and I've been using one of those expanding thingies you put in the saucepan. Effectively, but limited in size and quite slow. We've also got a microwave steriliser, and I barely use the thing these days. Solution? Use your steriliser to steam your veg in the microwave! Works a treat, and takes much larger quantities of vegetables <wanders off, buffing shiny brain>