HI!!! Just back a month ago with our then almost 4 yo. Even with the reduced park hours, we still needed a break mid-day! We were there very early ! My advice is get to the parks 40-45 minutes before opening and tour until about 2 or when your little one would nap. One day we left MK at 3 in the pouring rain with my son passed out in his umbrella stroller! Needless to say, we pushed it that day!!!! Anyway, after our breaks we would head out to Epcot or MGM for dinner (sooo relaxing). Our son LOVED TOD, but screamed as soon as Illum started (it was the noise). I guess what worked for us was to tour pretty agressively in the early morning and then just relax and enjoy the rest of the day. Both days at about 4:30 or 5:00 we walked right on to Spaceship earth and other things at Epcot. At MK walked on to 9 rides by 10:30 (park opened at 9). Have a great time!!!!!