We know all kids(big and small) are really excited but its fun to add to the anticipation.
We do movie nights.
I did a count down chain and had a Disney fact, trivia on each link. Started at 100, some were simple some we all learned something cool.
Look through past trip photos- I did a slide show on our TV and a mini video collection. I did a few side by side pics of ids on same ride a few years apart. I had yds on Carousel at 11 months then at 3 years old.
Made mickey Tshirts with spray bottle and bleach
Ride videos and blogs about the parks, planning meals.
Plan which characters they want to meet.
I tell the kids our plans as if I am telling a story, they love it.