If you get a Disney visa, you can buy
walmart gift cards (getting a 2% back on the visa card in disney rewards ) then take those gift cards to Sam's club...ONLINE...via ebates (getting a cash back %)...and order those discounted disney cards.
The discounts just go on and on...
You can also purchase disney gift cards at Kroger at the time of the year when they are offering quadruple fuel points and pay for the whole trip in loaded ($500 cards) which will rack up your fuel points giving you up to $1 off per gallon.
We have saved gobs and gobs. I just got my disney visa reward card in the mail and it's loaded up with $450 in free money and we've been buying $1 a gallon reduced gas since Dec. 1.
Keep one thing in mind though. If you do pay for your trip in 50 dollar increments, you may indeed get a not happy CM on the phone telling you they only allow two forms of payment...two cards. I pushed back and got a gall on who knew how to override this.