My Husband found a real good site that tells you on what days to go to the parks, based on activities of that park and the other parks. It also tells you what order to ride the rides so you dont wait in line longs. He also has a guide to let you know the best and least crowded places to sit for Fireworks, Parades and Shows. He has said that we have saved alot of $ and has gotten us some hard to get dinning reservations by using his advice. The Web Site is Called TourGuideMike.com and here is a link.
http://www.tourguidemike.com/