I can NEVER wear sandals if I'm walking a lot- no matter where I'm at, let alone all the walking at WDW! I get blisters in like 5 minutes- seriously! (And they are super soft nice expensive sandals too! Feel comfortable- but I get blisters easily I guess)
And I always seem to forget to break in new shoes before a vacation or situation where I'll be walking a lot.
I HAVE to make sure I bring moleskin next time! Maybe I can even wear sandals! LOL