I have the opposite problem! My health is not so great and I often can't get up as early as DH. He amuses himself by going out for breakfast and taking walks, but there is also an electronic store in Orlando that he likes.
This brings me to my suggestion -- if you have a car, you can go shopping! Some of the outlet malls are open until 11 pm.
I'm really glad to find this thread. WDW will be closing early during our next trip (8 pm most nights for MK, 7 pm for the Studios) and we'll be off-site, so no extra magic hours. Calling it a night at 7 or 8 pm sounded discouraging. This is giving me some good ideas on evening entertainment!