6. They pack the essentials, and there are some essentials.
Everywhere you look within the parks, you’ll see guests carrying every size, type and color of backpack or bag. Pros at the Magic Kingdom will be among those with backpacks. That’s because they know there are some things they’ll need while at the Magic Kingdom that are much easier to keep and access in a backpack. These include an extra pair of socks (to use when they get really wet on Splash Mountain), hand sanitizer, an umbrella, a poncho, pennies and quarters (for pressing), small snacks and sunblock. In the cooler months, a lightweight jacket or hoodie is also essential.