A goal of mine this year (and future) is to pay close attention to birthdays, special holidays and at the very least send a card. To help me do this I created a Special Date/Address Book.
The calendar in the book isn't for everyday tasks, instead just important dates I want to keep track of...birthdays, anniversary's, holidays. I find this to be much more helpful as I don't need the every day schedule, that's what post it notes are for. Also in the book I have addresses and phone numbers. Inside the front cover I put an elastic band to hold cards, a notepad, photos...anything I want. There is also blank pages for me to fill up later.