On Facebook, Patti Digh offers some fabulous advice:

To my friends with kids moving to college next week, I have but three pieces of advice: 1) Handcart. Trust me. You'll make 2 trips instead of 15; 2) Make the day about them, not you. About their fantastic future, not about your loss; and 3) Leave them sooner than you believe you should. Say goodbye and go. They can sort out their clothes and hair conditioner. Go.