I shared with you yesterday one of the ways I design my Christmas Cards as part of my Homemade Christmas series. I really enjoy taking the time to make my own cards. It's not really cheaper, but I love knowing how much the cards are appreciated by its' recipients!
I have been using a Christmas Binder for the last 7 years. Prior to that I kept this info on the back side of index cards in my address box. I got rid of the old address box and keep addresses in my Christmas Binder. This log makes it easy to see who you sent cards to, and who you've received cards from. When you receive a card from a new friend, just add them to the bottom of the list!
Christmas Card Log