The thing that impressed me the most on my most recent visit to Disneyland was the FastPass system. For the major attractions, you no longer have to wait hours in line! Instead, you insert your ticket in the FastPass machine, and it will give you a time to come back. When you return, there's a FastPass line and usually there's no wait! You go straight in! The thing to remember is that you can only do 1 FastPass event at a time, so plan accordingly.
more