Well, I found it. And I'm positive that if you have children, you have discovered the solution to getting your kids to play alone together, too. And I mean, quiet, focused, in-their-bedroom kind of play.
All I had to say was, "It's time to pack up Christmas."
Now, I have to admit, my older boy did well with the tasks I gave him. The younger one...well...not so much!
As soon as we were to a grown-up-only point, I sent the kids to their bedroom. I've never seen them scurry so fast! And then ~ golden silence! :-)
I did manage to get a lot done. And my boys played well together. While they didn't get as much of a cleaning lesson, they did learn they can play well together. And perhaps for now that's enough of a lesson.