This is an example of how writers are always working, no matter what else they're doing:
Today is not one of my three work days. No, it is a taekwondo, elder care, and life chores day. So I'm sitting in the Laundromat for life chores and reading this book in which the not at all dearly departed are coming out of the grave when I suddenly have this flash of insight--Hey, a grave or maybe a body in a well could be just the thing for the project that I'm slowly slogging my way through.
I am feeling quite pumped up.