Tower of Terror, Rock-N-Roller Coaster, Toy Story Midway Mania, Star Tours (a few times), The Muppet 4D show, an ADR at 50's Prime Time or Sci Fi Dine In, catch a show or two, do the animation class and see Fantasmic. You can still make a day of it but it will not be a rushed day. If you want, you can do a Fantasmic Dining Package. I liked the VIP treatment but it was expensive. I don't think skipping the soon to be named something else park is necessarily a "skip" it just doesn't require a full day depending on season. My last trip, I actually left way earlier than expected.