Do you have an address book? Specifically a paper one where you use a pen or pencil (or crayon or eye liner pencil) to write down contact information. Or do you rely on technology, like Google+ or your phone?
I have two address books, one for Christmas cards and one for HB pen pals and people I write often. Then I have a Google Doc with address information from my wedding back in 2011. Some post it notes and bits of paper with contact information. A small stack of business cards. And then my phone.
What about you?