For those looking to save on Disney gift cards and are looking long term, now is the time to start preparing for the November - February period which is when the real savings begin (ie, the 25 - 30% range). Most of these deals involve Amex offers, so you should start accumulating and adding authorized users to as many Amex cards as possible now to be ready. Just a reminder, last year there was $20 back on $100 at Staples.com, there was $20 back on $100 at BJ's and 20% off at Sam's Club. All 3 of those netted you Disney gift cards in the 25% - 30% discount range. Again, there is no guarantee the same deals will be around this year, but I'm guessing at least some will be back.
Another reminder on Amex offers is that in the past they have opened at midnight Pacific time, so the real good offers are usually filled up by 7AM the next morning. During the November -December months, you should check deal websites first thing in the morning when you wake up if you want any chance at these deals.
One last point, Amex did start releasing some of their deals at 12 noon Pacific over the last few months, so I'm not sure if that will be a permanent change for the future.