I think tips might also depend on when you are going to the parks/time of year. I love the list above! We do a lot of those items
1. The shops on Main Street are all connected, you can walk through the Emporium up to Casey's Corner.
2. If it is pouring down rain, grab a locker early! This was us in January. We had our backpack with us, but didn't want to deal with it getting soaking wet (think downpour), by the time I went back to the locker mid-morning to drop off our rain coats, almost all the lockers were gone.
3. When leaving Tomorrowland and going towards the hub, there is a walkway before the castle that will cut to Fantasyland - 8 trips and just found this one.
4. Stay to left when entering MK. Most people crowd to the right.
5. Rope drop
6. When we rope dropped HS this year, we were able to loop Rockin' Roller Coaster 3 times without any wait. Everyone is in line for Tower of Terror, Slinky, RofR.
7. Don't skip making a lunch reservation. We've actually extended this to dinner as well. Getting to sit down and having someone bring you food after dealing with crowds all day is super relaxing.
8. We don't drink around the world at EPCOT, but we do take an afternoon break, sit in the shade and have a drink and people watch. Super entertaining. Plus you get to relax and make a game plan for the evening.
9. Know what other buses you can take to get to your resort. Art of Animation, you can take Pop Century. Caribbean Beach Resort, you can take Riviera. I know there are others. This has saved us countless times over the years.