What a great idea to share tips/secrets etc.

Okay here's my contribution

I have read that if you look closely in the murals of Cinderella Castle you will see that one of the stepsisters face is red with anger and the other stepsister's face is green with envy as they watch Cinderella try on the glass slipper. It's also been said that some of the tiles in the Wicked Stepsisters mosaic is made of real gold.
Here are a few facts that I have read about the Haunted Mansion--(I'm anxious to check out in August.

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If you look up at the top story right above the front door at night and watch it for a little while you will notice that a light will pass by and some shadows, it looks like two people are walking by with a lantern.
At the entrance before you go inside the last tombstone (for Madame Leota)has eyes on it that open just for instant.