If you have a child with a physical disability, I highly recommend getting your stroller tagged as a wheelchair. You can do this at the same time as when you're picking up your DAS pass.
Having your stroller tagged as a wheelchair means you can take it with you into the lines, right up the ride. For kids who can't stand or walk long distances without pain, or those who need as much downtime as they can possibly get, this can greatly extend how much time you actually have to enjoy your day.
Image Source: Leah Campbell