Happy Father’s Day, Dad. Boy, did you matter.

With Father's Day looming, I am thinking of greeting cards. No, not the card I need to send my father, but the cards he sent to me every single day when I went away. At camp or visiting relatives, and even into college, I could count on that daily envelope from home: a card carefully selected for the sort of jokes that might appeal to a 9-year-old, and a handwritten note from him.