For anyone wondering, my 5% at Target.com coupon does work for Disney gcs, but I think we're gonna use it for a nursery dresser instead. They have a deal to spend $200 and get a $30 Target gc plus we get the 10% on top of that. It comes out to saving around 24%.
When I tried the 5% for the Disney gcs it was more like 9.75% because they take off 5% for the coupon and then 5% off of the next amount for the redcard so it isn't quite 10%. We have 10% offers at Staples and Lowe's that we'll use for Disney gcs.