I'm glad Tyler is little so if I pack a ton of clothes they still don't take much room up. Plus we bought him a airplane ticket, so he is allowed his own luggage!
I would highly recomend some gloves and caps for little ones. We went with our nieces (2 & 3 yrs) in Dec. 2003. It was cold in the mornings and their hands were freezing. As I rememeber, some days were never very warm to remove layers. We live in Nebraska, so we are acclimated to cold as much as one should be. Tiny gloves were impossible to find, so we ended up buying socks for their hands. I wouldn't go as far to say we need parkas though. A fleece pull over kept everyone happy.
I'm going to plan on Tyler wearing full lenth pants, a t-shirt, and a long sleeve shirt every day. We'll lose the long sleeve shirt if he gets too warm. I will pack him a few shorts, but I doubt we'll use them much. In my experience even if its 70-80 degrees, long pants are fine and that way if he trips the little knees don't get skinned up.
I will be easy to pack for, being pregnant a "human oven", I'll be good in a t-shirt and maternity pants in any climate. I don't do shorts even if its 100+ degrees for the safety of everyones' healthy vision
DH is part polar bear, so he will be fine in shorts and t-shirts in any weather.

I CAN'T WAIT TO START PACKING!!!! I GOTS THE DISNEY FEVA!
