there are a few awesomely cheesey things you can do. i know when we go down we have like an 11 hour car drive ahead of us, i'm not sure if you are flying or driving but you can always burn all your favorite disney songs or WDW songs onto CDs to listen to on the way there...coming up with and burning all those songs can occupy some time!!
you could buy the latest WDW guide book and catch up on everything, or just surf any disney trivia site, there's so many of them. this is what is keeping me occupied (during finals week sadly). i also bought a few of those "inside" disney books from amazon.com with trivia and stuff to read now and on the way there...
maybe if you are the scrapbooker type you could start collecting stuff so when you get there you can just plug in your pictures! although i don't know if you'd have time for that!
i have been spending a ton of time trying to find a blog of someone who currently is a CM at disney, but i can't find one for the life of me. so you could look for one of those and tell me if you find one!! haha, jk. anyway, good luck!!