We recently painted our bathroom. We were talked into an expensive "one-coat" paint because it had a rebate. In my world, there is no such thing as one-coat paint. Not the one we just used and not any other. I prefer to paint twice; as opposed to going back to touch-up 37 times afterward. I do not believe in one-coat paint! "This paint is so great you need only put a few drops on your brush and touch it to the wall and the entire room will be painted!" Sure it will.
The thoughts of a writer.