Wowza! There are a lot of comments on here.
We have only been to the VMCP once before and are planning a fall trip for 2010.
At the time we were there, I thought it might be the only time we would be able to afford to go with a family our size while they were young (have to save for college too). I made customs for my girls and the only thing I wanted to make sure we did was to get them the pictures in Minnie's house and with Minnie while we were there. There were some children there that kept jumping in front of my girls. I seriously only wanted one or two pictures. They didn't speak English so I couldn't even politely ask them to just give me 15 seconds for pictures. We moved to a different area or room and there they were. We moved back to another room and they followed us there. It didn't occur to me later that they probably just really liked my girls outfits and might have been talking about those. I wish I could have communicated with them but it put the situation in a different perspective and I was glad I hadn't been rude. Irritated? yes. Rude? no.
Smoking - I wave my hands. I will start sneezing then my eyes will itch and then I can have an asthmatic attack. I tried to avoid the smoking areas but we've been places where there are smoking areas and people have left them. If I forget or if I run into it somewhere, I will wave my hands and try to hold my breath and leave the area. It's not to offend anyone but it's just me trying to not get sick. I've even had problems before and started sneezing then realized that a car next to me might have a window down with a cigarette hanging out. It bothers me even if my window is rolled up. My mother just passed away a few months ago from an enlarged heart due to complications from emphysema. She was best friends with all of us 4 girls and we talked to our mom every day. We are all so, so sad without her. So if you see me waving my hands, please don't assume it's just to make a scene and know I'm trying to find my way out of the smoking area.
Breastfeeding - I've breastfed 6 children so if any lady needs tips, feel free to PM me. I have some friends who are La Leche leaders. I do breastfeed in public and am as discreet as possible. I have seen women just whip out their breasts with no sense of decency but they are few and far between. I've had people walk up to me as I was nursing a baby and try to come "take a peek" at the baby and I tell them the baby is eating. I prefer nursing tops most of the time when I know I'll need to feed the babies while out in public. Although I've lost 50 lbs this year, I certainly don't want my fat hanging out for anyone to see.
Taking screaming children on rides - When we were there, a child was scared to get on a ride. I had other children on the moving ride that I needed to join so I had to grab the child and get on. I knew he would be fine once we got started and he was. It was just the whole getting onto the ride while it was moving that we had never done before and he was a little freaked about that part of it.
Strollers - we had a double stroller last time. Although we tried to rest earlier in the day, we didn't plan accordingly and had children falling asleep. By the end of the night, I had three children sleeping in that stroller and we were trying to make our way out of the park. I'm sure nobody meant harm in saying older children shouldn't be in strollers but I don't see any harm in it at all, even if there aren't any disabilities.
Just remember to be patient as there are 1st timers to the park and there are people who try as they way just simply aren't as seasoned as some of you pros.

However, if parents teach their children manners then that will go along way. Our children aren't perfect and won't be there but we try to feed them decent meals and allow plenty of time for resting. I have over 30 pages of notes, itinerary, budgets and custom outfit planning, but there are going to be some things come up that I don't know about so spread the peace, love and pixie dust.

We are spacing out our trips this time and not doing any activities more than every other day. It allows time for rest and will help us not get burnt out or sick.