I hate to be the negative one, but you will undoubtedly see what are called "palmetto bugs", which are essentially large cockroaches. The problem is that these live *everywhere* in Florida, because they thrive in warm, humid environments. They are all over the place, even in the parks, which isn't bad housekeeping on the part of Disney. They are just so prevalent, like ticks on most of the east coast! You'll see them more at night, and I have seen them on almost all of my visits to Disney and FW in particular (because of the trees and vegetation). The good news is that I've never seen them inside a trailer or building at FW, although we did see them inside Space Mountain! I hope this helps and doesn't scare you away- I just want to be honest! There is so much to love at WDW that hopefully a few bugs won't lessen your enjoyment of it!