Make sure you have reservations for sit down restaurants - you pay a premium for a table but it's worth it!
Get there EARLY. As in during Magic Hour. We were shocked when we went during the week after Christmas / NYE how quite it was first thing in the am: especially with early entry. No lines for Pirates, Small World, etc. Fast Pass is your friend.
Be prepared to be run over by EV's and the people don't seem to care if they are running over your little kid, your ankles, etc.