We are leaving tomorrow also...driving down. My biggest obssession is "did i pack the tickets?" I will take them out and look at them 50 times before i get to WDW.
I am gonna take a shower, relax and dream of Disney!
I suspect the "mommy guilt" is causing the feeling of unpreparedness! Make a list, compare it to what you packed and go to bed. Have a GREAT time for all of us that don't get to go anywhere tomorrow but to the supermarket!!!