We go to WDW every year in June. There's no other place we want to go besides WDW. We started planning our June, 2008 trip on the 16 hour drive home from our June, 2007 trip. I am already starting to think about what resort we will book for our June, 2009 trip.
I have already bought all my clothes for the 2008 trip. I am working on my husband's wardrobe already. I can't really do too much pre-shopping for our 10 year old son because he grows like a weed! I like to shop offseason because the clothing is sooo much cheaper.
I have started picking up the little things we will need like.....drawstring laundry bag, extra hangers, glow sticks, cards, etc. etc. etc.
So, if you are crazy to start planning a 2009 trip then so are lots of other folks on these boards.....me included!