It seems that everyone here on a boat has a calling card (like a business card).  You meet someone, and they give you their card with their temporary mailing address or mail service, cell phone number, name of boat, name of people on board, and often a picture of the boat or crew.  Wow!   I feel under prepared.  I wanted to pass this on since it seems like a norm here is to have calling cards.  I find that people are pretty friendly and seem to go out of their way to meet you, so the calling cards make sense.  So, before you leave, get your printer out or go to Kinko's and have a bunch of cards made to give to your new friends.