Beth, I'm a big fan of using
Disney Gift Cards to pay for my Walt Disney World vacations! I purchase gift cards through retailers that offer a discount. I believe a penny saved on a vacation is a penny earned towards a magical souvenir! My experience has been you can use one gift card at a time per payment online.
Personally, I like to collect gift cards and consolidate them on the Disney Gift Card website. It's very easy to do and each gift card can currently accumulate up to $1,000.00. Once I'm ready to
pay the balance, I contact Disney and do so over the phone so I can apply more than one gift card and also talk to a cast member about room requests and any other questions I may have at the time.
Once my vacation package is paid, I then accumulate and consolidate gift cards again so that I have plenty to use for meals and souvenirs. If you choose to do this, you can either carry the gift card with you and use as needed or you can stop by the front desk of your hotel any time during your stay prior to check-out to apply towards any purchases made to your reservation.
I hope this helps answer your question and thank you for visiting planDisney!
Diane