Spelling not mine - it's an American site.
There's a few different plans but the general idea is you start on 28th August and do a few household things and a few Christmas things each week.
So de-clutter living room and write Christmas card list (although a bit more involved than that)
I like the idea as I'm due 22nd December and have a 3 year old so want to be slightly prepared and not running round last minute.
Anyone else interested? We could have a support group!