Secret Information? If I told you, I would have to kill you...no seriously. :P
Ask for the front of the monorail (sometimes you have to wait for the next one if it's full)
If a rope isn't up, the line is open. This is good advice for things like Pirates when they typically have both sides open and one with no waiting.
The entire west side of Main street is a complete walk through, so if your stuck behind to many people on the main drag, cut through the shops.
Get your haircut at the Barber on Main Street, the original BBB.
Best piece of advice I can give is don't follow the crowd, keep your eyes open for Dream Squad and don't push yourself to hard.