The 2011 holiday season is almost over, and I have to say that I received many less paper cards this year than ever before. My informal survey of displayed paper cards in offices at my law firm, and in offices that I visited in December, confirmed to me that more and more businesses have stopped sending paper holiday cards. Maybe (probably) it is a cost-cutting measure. Indeed, trimming expenses has been a major focus of many businesses in 2011. But it is also a sustainability measure.