(1) Got there early (~10 min after the opening).
(2) Do not bother with the locker. We had our hopper passes, credit card, and a little cash around my neck in one of those waterproof wallet box (~$2 at my local sport equipment mart). We brought a small ice chest filled with water, capri sun, and candies. We also brought a few towels, a bag of chips, and waterproof one time-use camera.
(3) Played hard early, and left before lunch so that we had some energy left afterward to do other things.