I can't think of anything not to do, but I suggest that you go to the Princess Luncheon at the Grand Floridian resort. The princesses walk around so you can get pictures with them, and will even mess around with family members giving you a good laugh. :D
When disney abandons a place on their property which is relatively easy to access, I don't get why they don't take all of the memorabilia/staff/expensive stuff away. That, and things like paperwork and test vials.