I am so excited about planning our trip for March 2014! I'd like to pay for as much as I can with Disney gift cards since I can buy them at Target for 15% off! ( we get an employee discount with the red card.). How do I use gift cards to pay for a vacation package? How many can I use at a time to make a payment? What happens if I get the trip paid off with the cards and they then offer a discount for our trip time?