Hi, Samantha!
I'm so excited that you are bringing your princess to Walt Disney World! Seeing the magic through her eyes will be so special.
Make sure you bring the necessities from home: a backpack or tote bag, diapers, wipes, and some snacks (crackers, goldfish.) Make sure she has sunscreen, a hat, and sunglasses if she will wear them. Keep an extra set of clothes with you at all times for any accidents, spills, or running through water fountains in Epcot! I also kept large ziploc bags in my backpack to store away any wet or dirty clothes.
Bring a stroller that has a cover on it to block the sun. If you have one with a basket, that is even better so you can store all your goodies. (Be prepared to fold your stroller before boarding buses.) Also pack your camera and an autograph book for when you meet Mickey and all his pals.
Once you are at the parks, locate the
Baby Care Centers. You will find these centers to be your very favorite places to visit! I spent countless hours in there when my kids were little. There are changing tables, high chairs, kitchens, restrooms, and more. They even sell baby items that you might need.
Try to keep on your daughter's schedule. Nap times, bed times, and meals should stay as stable as possible. I know how hard this is with so much to explore at WDW, but the better rested your princess is, the happier everyone will be. Pack and plays are available free of charge, so make sure to request one. I always brought my kids' favorite blankets to make it feel more like home.
If you forget anything, most items can be purchased at your resort or in the parks. Have a wonderful time making memories with your family!