Okay--it's time to share a truly tested idea that works at our house for getting everybody to pitch in with the pick up. We do "tune tidy"--I made that up. A little dorky, but it's working. We play a song we love (ours is The Gap Band's "You Dropped A Bomb on Me") and then run around the house putting things away for the duration of the song.
The game is that you're not ALLOWED to do any more pick up after the song ends. So we (the boys and me) can pick up all our front rooms in about 3 1/2 minutes.
There you have it: song-ish housecleaning wisdom from a woman who no longer has to say annoying mom-ish things like, "You know, if we're all going to be in this family, then we really should pitch in with the work that has . . . ."
Now I just say TUNE TIDY! put on the song and we all start running.