Hi Janelle,
How exciting to be planning your princess' first Disney World vacation. We have been traveling to Disney World with our boys since they were four months old. You will be amazed at the number of attractions you can enjoy with your daughter, as there are only a few attractions that have height restrictions.
Most of the attractions at Disney are slow moving vehicles that can be enjoyed by the entire family. A good majority of the attractions feature small seats designed for two or three guests or longer bench seating that can seat four or more in the same row. These attractions will allow you to sit your daughter on the seat or bench next to you, or on your lap. Besides the numerous attractions you can all enjoy, Disney World has quite a few movies and stage shows that are great for all ages.
You can find a list of all height restrictions at
www.allears.net under theme parks. Be sure to plan plenty of time in Magic Kingdom as this park offers the largest number of attractions that your daughter can enjoy, especially Fantasyland. Some of our boys favorites when they were smaller was It's a Small World, Peter Pan's Flight, The Many Adventures of Winnie the Pooh, Dumbo, Buzz Lightyear's Space Ranger Spin and Pirates of the Caribbean.
Wishing you a magical trip!