I always have a couple of books in the bathroom, on the windowsill, a stack of them on my nightstand (I only read one out of the stack at a time, though), a couple on the table next to my living room chair, and a couple in my purse. I read the book that is nearest to me at any given time.
I read the books in my purse when I am in a waiting room, or if I'm eating alone, or something similar.