Hi Vanessa!
Welcome to planDisney!  Your Walt Disney World Resort vacation is just a few days away and I bet you are excitedly counting down!  Have you packed those mouse ears yet?
Vanessa, I love stocking up on 
Disney Gift Cards before each of my Disney vacations.  I like that I can buy a few each month to help budget for my trip.  You'll be happy to know that you can use Disney Gift Cards to pay for your resort stay, vacation package, tickets, and most dining and retail around the parks!  When making an online payment, most times you'll only be able to use one gift card.  If you have multiple gift cards that you'd like to use, you can combine their values into one card on the 
Disney Gift Card website (up to $1000 per card).  If you need any assistance with your payment, you can call 
Disney Resort Hotel Reservations and a Cast Member can help you apply your gift cards to your stay.   
You can also use your Disney Gift Cards to make purchases on the 
My Disney Experience Mobile App while in the parks including 
Mobile Food and Beverage Orders and 
Merchandise Mobile Checkout.  At this time, you cannot save your gift card information in the app the same way you can store credit card information so I like to keep my gift card numbers handy in a notes app on my phone.  That way I can cut and paste the numbers easily during my day!
Speaking of 
great food and 
merchandise, don't miss the 
EPCOT International Flower and Garden Festival during your visit.  My panelist pal, 
Amy, was recently at the festival and shared a few hidden gems on the 
planDisney Instagram page that you may want to check out.  I'm always overwhelmed by the variety of food and drinks as well as the entertainment at EPCOT festivals - there is so much to try!  
Vanessa, I hope this helps you plan for your upcoming Walt Disney World Resort vacation!  Please remember that you are always welcome to be our guest here at planDisney and we hope you come back to see us again real soon!
Cheers,
Kristi