Midnight notes
When I'm really in the zone with my writing my brain works on the project at all times, often bubbling beneath the surface. The best evidence of this is when I've fallen asleep and I awake with an idea for a scene, or dialogue, or somesuch.
Then I drag my weary body out of bed and unhinge my sleep-stuck eyes and fumble for pen and paper. I have learned the hard way that I will not always (or often) remember these ideas in the morning and even if I do they're clouded. So I turn on the light and scribble what the Muse has given me and then I roll back into bed muttering, "Is that it? Can I sleep now?"
That's been happening lately. And while I bitch about having to wake up, the truth is I live for those moments because it means I've reached a certain plateau in my writing and the view is pretty good from there.