Get up early and have breakfast, if not at Cinderella's Royal Table, then at Chef Mickeys. (Note, if it is a MK Early Entry Day, get a 7:00 a.m. PS. The characters have a lot more time for hugs and kisses!)
Go to the Magic Kingdom & get your picture taken on Main Street with the castle in the background.
Go to some great attractions, depending on what your girls want -- Space Mountain? Buzz Lightyear? Splash Mountain? The Carousel? Dumbo? WHATEVER they want, but try to guide them to go to the shortest lines first.
Go to Mickey's Toontown Fair and see princesses, Mickey, Minnie & the gang. If your kids are up to it, just go to the shortest line. Take lots of pictures.
Have lunch at the Crystal Palace and dine on great food with Pooh, Tigger, Eeyore and Piglet.
See some more attractions and go back to the hotel to play in the pool for a while and rest.
Go to dinner at Epcot or MGM and see either Illuminations or Fantasmic. If you go to MGM, do a dinner package. It'sworth it for the great seats.
Be sure to treat them to popcorn adn Mickey ice cream bars, too!
Have a great time!