Throw thwe stuff out then. One way or the other the clutter is gone. Leave them with 5 outfits of the most hidious clothes imaginable. Dress them like Poindexter a few weeks and let peer presure work for you.
I did throw the stuff out. They are too young to have the Poindexter affect make any lasting contributions (yet)
My husband went into our daughter's room (she's 7) on Saturday with a broom and swept everything on the floor into a pile at the door........what should have taken her an hour to pick up took more than 4 because of the tantrums she kept throwing and excuses for taking breaks, etc........can't for the life of us figure out where the stubborn streak comes from :^)