My daughter on the phone this evening: "Pop, what are the zillions of little brown moths around my house? They are everywhere!"
Yep, and they've been an early winter fixture for a few years now. Only the males have wings, so it's the boys you see frolicking at your back door. The larvas will raise havoc in the spring.
Apparently, these are a European invader, and have no natural enemies here. If you live in eastern New England, get used to them.