Old Fashioned

I think I am becoming old fashioned. What happened to the days when people remembered phone numbers in there heads or, heaven forbid if they couldn't remember, they had to write it down? I know I am not too old fashioned, where I know people's adresses so I can send them mail (not email, mail... yes). Although, I used to have some of my friend's adresses memorized, but then one of them moved and I forgot the other ones. I do know my girlfriends adress and both of my grandparents adresses, and of course I know my own. I intend to start remembering other people's adresses just to say that I can, and to be able to send them real mail.