i go every year for the 4th. for some reason on the 2nd and 3rd the parks aren't that bad. i assume it's a big travel time and lots of people are checking in and out. at times it can be crowded so if you are a resort guest take advantage of the early opennings. i stay at the floridan and there are alot of activities for the 4th. the kids decorate the luggage carts and have a mini parade with mickey and minnie. they usually bbq by the pool. it's a great day to relax. i would suggest avoiding the parks on the 4th and go to the downtown disney area. the parks tend to close b/c they fill rather early. also watch the fireworks from one of the MK resorts. the fireworks are outta this world and the resorts offer the best view. this year they are gonna be even more amazing b/c of wishes!