I'm a total writing polygamist. I just can't dedicate myself to one book at a time. Right now, I have two YA projects going, one urban fantasy project, and an erotic spy thriller. Plus a smattering of short stories I can't seem to finish. Yikes.
It's fun hopping from a project intended for 15/16 year olds to a project full of filthy sex at gunpoint, then over to some classic urban fantasy with an extra dash of gore, and back down to YA projects again. Sometimes I catch myself writing my teen characters with potty mouths and have to go back to clean it up, lest I set a record for YA books with the most four-letter words, but otherwise I keep things straight pretty well.
I'm a genre girl at heart. Always have been, always will be. Even so, it's good to have some variety in subject matter-- if I'm stuck on a porny scene in my erotic spy thriller, I can always take my time writing some clean teenage angst on a YA book. This way, I'm always in the mood for something.
Of course, this also means I've got about a dozen half-finished projects sitting around that all creep forward on the Progress Meter about as fast as my fingernails grow. I sort of wish I could really crack down and focus myself once in awhile.
How do you keep yourself focused and get projects done when you're in an aimless writing mood?