Don't Forget to Pack Snacks
There are plenty of yummy treats to be enjoyed at Disney World, but you don't want to blow your entire vacation budget on Dole Whip and turkey legs. Disney does allow you to bring in small coolers or backpacks with food and bottled water. This is especially helpful if you visit during your first trimester like I did and you never know what will sound good at any given time. I brought an assortment of snacks in with me every day of our trip. With all of that walking, you're going to need the extra calories, so stock up on healthy nibbles like trail mix, cheese sticks, fresh fruit, and maybe a little chocolate.
Bonus tip: freeze your water bottles the night before so they double as ice packs.