Quiet House?

I just had a friend say her kids are home from school and are driving her nuts.  Yes, I do remember those days.  I would put one on each end of the couch and tell them no talking, no touching and above all no fighting!  That would last for five minutes and it would start all over again.  We have all been there.  It seems so important at that age to have a few minutes of peace and quiet and it doesn't happen when we want it.  It's easy to say wait a few years and it will change, and it does.  But it would be nice to have a little quiet time when you need it not when they want to give it to you!.....