I find that as I get deeper into a story I'm writing, it starts to take up my mind all the time. Of course, this is good when I'm writing, but after I stop writing, I will still be thinking about the plot, obsessing over things, wondering whether this way or that way is better. I find it hard to just step back and focus wholly on something else when I'm that into a project. I'm just interested to see what others' experiences with this are. Can you write and then switch off until you next sit in front of the keyboard? Or do you find the story constantly filling your mind, refusing or making it hard for you to focus on other things?