Hi Brian! Welcome to the Disney Parks Moms Panel!
Less than two weeks until your Walt Disney World Resort visit... I know you are getting excited at this point! Thanks for bringing such a great question to us in preparation of your arrival.
I definitely recommend taking in a small bag for necessities like you suggested. My family actually brings a medium-sized backpack with us in the parks. Since we have two young kiddos, we find it is the easiest way to have access to essentials like phones, sunblock, snacks, a change of clothes and/or diapers, ponchos, etc. It's amazing how much you need with kids in tow, isn't it? My husband and I also keep our IDs with us, just in case we need them for something, like purchasing adult beverages.
Here is the park rule for prohibited bags: "Suitcases, coolers or backpacks, with or without wheels, larger than 24" long x 15" wide x 18" high." As long as your bag is smaller than that, you should be good to go!
Enjoy your
spring vacation, Brian! Please visit us again with any other questions you may have.
Tabitha