Greetings Christine and welcome to the Disney Parks Moms Panel!
I am so happy to hear that you are planning a visit to the Walt Disney World Resort with your family!
For the comfort of Guests visiting with little ones,
stroller rental is available at all four theme parks. At Magic Kingdom Park you can rent a stroller right at park entrance under the
Walt Disney World Railroad – Main Street U.S.A. You are also welcome to bring your own stroller with you, and if you are staying at a Disney Resort hotel I highly recommend renting from one of Disney Featured Providers. This will allow you to take the stroller with you throughout the Walt Disney World Resort since park strollers must be returned before exiting the parks.
Refillable cups are currently available for Guests staying at Disney Resort hotels, and they may be used at beverage stations located at all Disney Resort hotels. At the theme parks you will find that certain locations sell beverages on a souvenir cup that you can take home, however these are not refillable cups. Be Our Guest Restaurant, for example, offers the Souvenir Castle Goblet that lights up. At Akershus Royal Banquet Hall at Epcot you will find an Ariel or Buzz Lightyear Punch served in a souvenir Ariel or Toy Story 3 cup. Always ask Cast Members at dining locations if they offer special souvenir cups, they will be happy to show you the available options. These cups are great to take home, and I always add a new one to my Disney collection after our visits.
I hope this helps you while planning! Please stop by real soon if you have additional questions.
Best magical wishes,
Thiana