I love the Deluxe Passporter for many of the reasons already stated above. It's a great reference, organizer & compact storage while planning your vacation. Take it along while on vacation and pull out a pocket (listing your planned notes/confirmation #s, PS, etc) for each day of your trip. Store any items/notes you've collected that day and put back in passporter. At the end of your vacation, you've got many memories organized while still fresh in your mind!
I also buy the latest edition of the "Unofficial Guide" for it's most up-to-date info. It gives many time & money saving tips, and, a more objective view listing pros/cons that you won't find in the "Official" guide.
IMHO, the best combination for WDW vacation planning is the Unofficial Guide, the DIS & WDWIG boards and the Deluxe Passporter to pull it all together in one planner.You'll spend a good deal of time planning a successful WDW vacation, and, you'll probably spend a good sum of money too--you might as well get as much good info as you can! Good luck in your planning!
<font size=2 color=RED>SEPT. 2001 - <font size=2 color=BLUE>ALLSTAR/MOVIES, POLYNESIAN & <center>BEACH CLUB!</center></font>