Nothing. My place is so well insulated (with triple glazing) that I don't have to heat. Don't have AC, but closing the blinds during the day keeps things cool enough.
In Berlin there's a car hire company called "Miles" (very handy, you can book and pick up a car in minutes) and they have a bunch of vans with a "damaged" e. So now it says Milfs. Hoho.
Truth is a fact. Thank you for coming to my TED talk.