Now that I'm a grandparent 4 times over...I might have to take slight exception to that comment. See, grandkids do actually go back home.
Not being a grandparent yet, I will bow to your greater wisdom.
Ditto on the joys of being a grandparent. My wife and I had all five of our grandchildren staying with us for the entire week of spring break. We really hated to have to give them back.
Playing ball with the grandsons in the backyard just as I did with my sons three decades ago was as good as it gets.