Here are some secrets/tips that I thought were interesting. Sorry if they're just repeats So here they are:
There is a hidden Eeyore sign in the back of the projection room in Indiana Jones. Ask a CM and they will show you if they have a flashlight!
There is a real pet cemetary in the Haunted Mansion que. Ask a CM and they will take you to it.
If you go to the top floor of TDA's parking structure, you can see where they house the parade floats. You can also see where they keep the horses that pull you down main street. If it's a breezy day, you'll be able to smell where they stable the horses.
The spider web on the glass for Haunted Mansion (where the ballroom scene is) is actually a cover up for a crack. Some person brought a gun and shot at the glass so instead of spending mucho money to fix it, they hired a guy to draw a spider web and spider (they did this in WDW so it matched).
The next time you are in Winnie the Pooh, look up and behind you as you exit the dream room, and you will see the original Country Bear Moose Heads. It's sometimes hard to see... the easiest thing to do is to turn on your flash of your camera and the next time you go through, sit in the back of the ride and extend your hands over the rear of the ride and take the photo backwards... I mean, the camera facing the rear... and it will be clear as day.
Ask the captain CM if you can pilots Mark Twain, they will let you and you can get a certificate!
There is one horse on the Carrousel with one gold tooth.
In the Peter Pan ride, Captain Hook's hook is on the wrong hand.
Not sure if this is true but- I heard that if you go up to the captain door of the mark twain and knock 3 times and say I'm here for my shift, they will let you in and make it seem as if you are driving it even though it is on a track, and you can blow the horn ( I think) does anyone know of this? or if it is even true?
Once again sorry if any of these are repeats, or just aren't interesting to you. Once i find more that are worth mentioning i will post