We went for the first time last year, and are returning again this year!
ADR's are a definite must! We missed out last year on a few, that were so popular!
Try to utlise EMH in the morning and late evening, we stayed at DHS when it was EMH until midnight after closing at 10pm, pretty much everything was a walk on! TSM/TOT/RnR were done mutliple times, it was great running around when it was so quiet! Same with MK when we got there for 8am EMH, we'd done the big main ones (Big Thunder, Space Mountain and Splash Mountain and Peter Pan's flight by 9am!) We did run around the park though so much easier as just us '2' no kids!
Pace yourself! If your at the parks early, take the afternoon off to relax. We crammed so much in our first 3/4 days we crashed & needed a day to relax and sleep!
Get your desserts to go! With the
DDP we didn't neccesarily need a cake after every lunch/dinner so we got ours to go and DBF put it in his rucksack, it was great for later on in the day when a little peckish or we put it in the fridge for the next morning! Cake for breakfast!
Try to meet the characters at the restaurants, the queues for some characters were well over 90 minutes when we were there!