Hi Claire!
Thanks for your question. A 3 week vacation sounds fantastic, and there's so much to do in Orlando, FL. Hopefully your family will be able to spend bundles of that time at
Disney World, the "Happiest Place on Earth!" :-)
The refillable drink mugs is a great program, and for those who are big liquid consumers (such as myself), it is hugely convenient. Unfortunately, the refillable mugs are only offered to those staying at one of the
Disney World Resort Hotels. It comes complimentary for any who has added the
Disney Dining Plan to their reservation, and at purchase for those who did not, but still would like to use them. But you have to be staying on property to do this.
Now you are allowed to bring your own comparable sized mugs into the theme parks, but they can't be used at any of the restaurant drink stations nor can be refilled.
I hope you and your family have a magical time in Orlando. And be sure to add some
Disney World time to your vacation! :-)
Terry