The Phone divider is somewhat self-explanatory. I tire of looking up phone numbers and addresses so I created a phone and address directory for those I contact frequently. I have added a document to the Box.net file sharing widget on the right-hand side of my blog. You may use those if you like, or just create your own.
Additionally, I have a copy of our Christmas card mailing list in this section. I have another copy in my Christmas planner.
Recently, I have added a Family Yellow Pages to my phone divider. I include listings for child care, piano tuners, car repair, hair salons, schools, lawn care, book stores, and other favorite business places. I am able to find numbers and names quickly because I have them located in one place.