One other tip... last year we sat along Main Street on the right side (facing the castle) and the sun was in our eyes the entire time. Made for a very hot wait for the parade to start. It was a great spot, but next time we'll try the other side of the street!
Also, there was no rope at that point, so we just sat on the curb to hold our spots. When the parade began, we adults stepped back to let other children stand next to ours in front of us. Sometimes you have to be very determined to keep your spot! At EPCOT we had these people RIGHT behind us and if we budged an INCH they would move right into that spot. I think that if you don't want to spend the extra time to get there early, then don't expect to inch (or push) your way to the front for a good view. JMHO.