In addition to trying to keep things like home, we have found the following things stop me from hating my life when I take DD places. Her add and other issues create this scenario where she panics and can not be reasoned with until she is ready to listen.
Carry snacks. As it approaches 60-90 minutes past the last meal or snack, I simply feed her something. I don't ask if she wants it, there is no option, it is placed in her hand or made obvious that she should consume it now.
Tell her the plans. Tell her the backup of the plans. Then remind her the plan might change if outside forces change the plan. I made her note cards for our days last year and it was the first year where we didn't have at least one day with a melt down from a misunderstanding that left us standing outside the park until she calmed down enough to understand that the place she was protesting was where she was demanding we take her. Our better past moments included a standoff at the security check at MK which left us sitting for an hour while she demanded I take her to the park... until she realized suddenly this was the way to the park. She instantly went from protesting and refusing to leave her spot on the pavement to smiling and dancing her way into the park.
I talk her through ideas of what we might do while making ADRs and now fp+ and she helps pick what we're doing. Then I do not let her focus on ONE event, but make sure there is a list of what we are excited for. If it culminates with a single event this is asking for trouble.
I basically tell her to suck it up if she complains about lines. She needs to learn to deal with it. There are people who truly can not deal with it so she needs to learn some compassion and either wait her turn or find something else she wants to do. I have no doubt she could easily get a
DAS card and is probably more in need of it than tons of people who get one. Would it make our days easier and more fun? Absolutely. But I see it as an item for people who can't do the park without it and it does not feel appropriate for my DD because we expect her to assimilate into society without special assistance later. You have to make that call for your own child though.
Ignore the silly comments about food. DD's adhd can be seen on a brain scan.