I have found shoes UP IN the couch, not under, not stuck behind cushions BUT up inside the couch!! I have no idea how they do that. I excavate under our couches on a regular basis as my oldest is now in the BAD habit of shoving food under the couch when I walk in the door unexpectedly (she's not supposed to eat in the living room).
There are things under there that I KNOW I've thrown away, so I'm not sold on the garbage party theory.
I am however convinced that Little Man's matchbox cars are having adult relations and making lots of new cars. Now the tractors seem to be getting in on the action too.
Not to be left behind are the Princess's 'art' projects....