There is a lovely, intimate (and a bit spendy!*) bar stashed just behind the lobby of the Rittenhouse Hotel (210 W. Rittenhouse Square). We will be in a corner of The Library Bar, with a Samsonite Slim-Line briefcase that has an Air Mail envelope affixed to it. Just sidle over; we will set you up with a post card, or a crisp sheet of linen paper and an envelope. When you’re done, pick out a stamp. Repeat as desired. *N.B. There are a many affordable drink options at The Library. But be ready to spend a bit if you’re dining, we advise thee.