Hilton San Francisco Union Square offers a variety of hotel amenities to make your stay memorable, including activities for families and fitness enthusiast. Cute Holiday Sayings For Cards Dec 20, 2017. Nevertheless, millions of us still send traditional greeting cards at the holidays: 1.6 billion cards a year, or $2 billion worth, according to a 2015 analysis. And, Swann has some choice words about using the likes of Snapchat to…