Last' Sunday I was on SJO-IAD, and fell asleep. When I woke up, there was a card on my tray. It was a business card from the Captain, with his email and apparently his home address!
On the back he had written, "Mr. Dboy, seat 9F, thanks for your business. We appreciate . . . ". I thought it was pretty cool. The FA said he did it for all PremEx's and 1K's.