Pack an autograph book and a pen, the characters all around the parks will sign them for you. Try and reserve one full page for each signature especially if you wish to scrapbook them when you return home.
Take some glow sticks, this is especially handy for the evening shows to spot each other in the crowds.
Create an ID for the children, such as on a lanyard just in case you get separated in the crowds.
In your backpack try and include the following: small towel, wet wipes, snacks, money (usually just for food or purchases), hat, jersey (the evenings can be chilly), small first aid kit, poncho (for rain and the water rides), quarters for press machines, spare phone.
Also take in a water bottle, there are free fill-up stations all over the park.
If one of your group is celebrating a birthday, engagement or its their first visit, go to the City hall (left as you enter the park), and ask for a pin and be prepared to be recognised all over the park!
There is said to be between 400 to 1000 hidden mickeys in the parks, see how many you can spot.
I'm busy working on my blog posts. Watch this space!