Well, it just happened for the third time. This past week, I dropped off my last child at college. As might be expected, there were lots of emotions. Excitement, nervousness, fear. And that was just me! My wife Melissa wrote a wonderful post about seeing your last child graduate high school which you can read here. Bring a box of tissues. Right now, as colleges are cranking up for the new year. thousands of other parents are experiencing the same thing all around the country. And as hard as i...