We are also going to WDW this December and will be adding gloves/mittens, hats for the kids, and sweatshirts on our lists of what to bring. I will definitely bring sunscreen (Coppertone has those new continuous spray types in a can - goes on great), but will not be bringing any misty bottles since I am not anticipating 80 degree weather in FL in Dec - but I suppose one never knows. My dad lived in FL for a few years and tells me Decembers can be as mild as 80, or as chilly as 30-40's - not 80 or 30 every day though. We'll probably pack jeans as well as shorts, and also bathing suits just in case there is a Dec. "heat-wave". We live in New England and do not mind cool weather, I just hope it does not rain too much. A coldish rain is sad, sad, sad. Oh yeah, I guess I should be prepared and pack ponchos also.