and how old are your kids?
I'm just getting a bit fed up of DS (4) leading DD (2.6)into our room to play and then trashing it. Dragging the duvet off the bed etc is all very well in their rooms when it's part of imaginative play but not ours.
Until now they have always wandered in and out with toys in the morning while we are all getting ready but now I have started leaving them to play upstairs alone, they are going in by themselves. I think it might be time to set a new rule : no playing in parent's room unless they are in there (this is how it was in my childhood as far back as I can remember ie age 7).