Hello Diane!
Thanks so much for stopping by the Disney Parks Moms Panel. I hope you are having a magical week.
When visiting the parks, because I have 3 boys, I tend to over pack. I like to bring in bottled water (plastic containers only though!), some small, light snacks, sunscreen, maybe a light jacket depending on the weather, a phone charger, etc. in a small bag or backpack. When going on the rides/attractions you can often keep your bags with you or they have an area near the ride to put your belongings for more intense rides. Or, if you prefer, near the entrance are
lockers you can rent for the day.
I hope this helps and please let me know if you need anything else as you plan your magical visit!
See you real soon!
-Emily