It has been one of the great engineering challenges of our life together as a family - packing our car trunk for family trips. Many times I thought it was going to be a choice between the luggage and one or two of the kids. But summoning all of my tremendous engineering skills, I would stuff every corner, try the suitcases every which way until they went in; find things the kids could sit on. And when all else failed, I called my wife. Well, we finally got it all in, just barely. Then came the big moment - drum roll please - as I tried to close the trunk. It closed! There was dancing in the streets! Then, from behind, came the ambush as one of the kids showed up with one more bag I didn't know about. And there begins the frustrating search for a place to put just one more things in the space that is already jammed.