Finished! Well, finished this early draft. There will be a few more before it's ready to do anything with it, some of the dodgy science needs a bit of airbrushing, but it's all pretty much there. And now I can't think about anything for a few days, so we're going to stay with some friends for the weekend, where I am determined to do no writing or thinking whatsoever. Just watching movies, drinking, chatting, and enjoying myself.
I'm still taking a notebook, though. Just in case. The good ideas only come when you haven't got a pen handy.