Great ideas - having fun reading through them!!
I collect tips etc from all over and add them on my computer, so I have looked back over others I have collected and thought I would post my favourites, which I haven't seen mentioned yet:
1: Take a chamois instead of a towel to the parks to dry kids off after they've played in the water areas. Much smaller then a towel, absorbs more water and can be rung out dry ready for any future uses. Makes sense!
2: Keep the extra napkins, plastic mickey shaped plates, straws etc. They are a cheap souvenir and apparently they last a long time and are a good way to keep the magic alive until your next trip.
3: While watching Wishes, one person had their daughter wear headphones with the soundtrack to Wishes playing. Apparently this helped her fear of loud noises. I guess this would work for Fantasmic as well. I guess ear plugs could be worth a try as well.
4: If it's the dark the kids are scared of, little pen lights (or anything that omits a dim light that doesn't distract other visitors) are a good source of comfort in the dark rides.
5: Take a small bottle of bubble mixture into the parks. This is light (and reasonably small) to carry, provides entertainment for the kids while waiting in line etc, is cheap, battery and noise free and can add to the magic for other guests.
6: Take the kids pyjamas into the park if staying up late to watch fireworks etc. Change them into them just before they start so they can be put straight to bed when home without being woken.
Some of these tips are probably old favourites, but there are probably plenty of first time mums who have never heard or thought of these ideas, like me. I don't know if they work well but I'll be giving them a try when we take our 2 year old son on his first trip in Oct. Can't wait!!