Most people who celebrate the winter holidays here in the US will probably agree that sending and receiving greeting cards has decreased during the past decade or so. While I was growing up, my parents would hang the Christmas cards people sent us along the base of the railing around our stairwell. Nowadays, they receive only a handful of cards, barely enough to frame a quarter of the stairs. We also send out far fewer. I used to send cards out to the friends I met at summer camp, but with the creation of social media platforms, such as Facebook, many of us no longer exchange mailing addresses and convert our correspondence to digital formats.