Yes, there are several good ideas. I too have the AmEx Blue Card, but honestly have not used it--may have to look into. I had switched to it from the AmEx card that charged a fee. From the previous poster's info, it sounds very good when comparing spending only $15,000 for a $200 reward --compared to Disney CC where you would have to spend $20,000 for a $200 reward. Since the AmEx Blue is good for hotels, rental cars or plane tickets, I could definitely see where this could be put to use at Disney resorts, etc. ( I wonder if it could be used to pay incidentals that are charged to the hotel rooms, such as merchandise, restaurants, etc.)
Also,the SW card is still a very good deal, where you can spend $16,860 and get a SW plane ticket that, say, is good for $450. And I realize that SW might not work for all, since some don't fly SW or its destinations. So far, I have earned 6 flights this year on it. I just remember to go online every 3 to 4 days to pay it off.