I seem to have figured out a new working system, even with 2 kids under 2 underfoot ... woo-hoo!
Mornings I take one child into the world, and leave one at home with our housekeeper.
Afternoons I leave them both home with our housekeeper, and go write for 2-3 hours.
It seems to be working. So far, I have FINISHED FINISHED the pilot I wrote with a friend on this schedule, and started sending it out. I have returned to the novel, AND set up a meeting to return to the book proposal.
Granted, I have to do everything in teeny, tiny increments -- baby steps, as it were. But even baby steps move things forward, and I'm pretty damn impressed with myself for having gotten it together this well despite a 5 week old new baby who eats EVERY SINGLE MOMENT of every night.