When you boil something, you really know that it's clean. The boiling point of water is 100 degrees centigrade, at normal atmospheric pressure. Once you've boiled something for ten minutes—a syringe, or a dummy—you know the little microbes that were sitting on it have been well and truly fried. Knowing this, I clean kitchen wettexes by sticking them in the microwave for 1 minute and 11 seconds on high.
it's easier to push 1-1-1-start than 1-0-0-start. Rice gets cooked for 12 minutes 22 seconds for a similar reason.
It occurs to me that one way of cleaning a house would be to warm every surface in it to 100 degrees for 10 minutes. Of course, this would be impractical, but even restricting the heating to kitchen and bathroom surfaces would represent a useful and immediate increase in the level of household hygiene. I imagine the nests of cockroaches hiding behind the oven, microwave, refrigerator and under the sink would be perturbed by the experience as well. And it would be a good way of heating the house in winter.
Imagine being able to phone up your kitchen and bathroom when you were fifteen minutes from home and instructing them to fry all microbes for 10 minutes, and to have a nice cup of tea waiting as well.
This seems to me so obvious that it is a wonder that no-one has thought of the idea before now.