There is a AAA discount offered at Earl of Sandwich. MAke sure you have a current AAA card to claim it at the register.
I ran an Excel spread sheet so that I could get an idea of what the actual savings would be for the Annual Pass / Tables in Wonderland card.
If there was a discount available for Disney Visa that was similar, then I didn't ascribe that savings to the AP/TIW.
Keep in mind that we did not make any dining or experience decisions based on the possibility of an AP/TIW discount. While we did change our HDDR time to take advantage of it, we were already going to see that show. So, everything that we did; we were already going to do.
All of the above being said, here are the hard numbers:
Additional cost of one AP and TIW card: $281.61
savings reaped through AP/TIW usage: $430.09
Net savings: $148.48
Not too shabby. Worth every penny.