Resort hop and Downtown Disney!!!
We love to go from hotel to hotel, wandering around and exploring. You didn't say if you'd have a car or not...if you don't, this will take a bit longer, but all the better for using up extra time!!

I think its a really neat way to waste time. I collect pressed pennies, so we add that into the touring and try to get ones from each hotel.
And Downtown Disney is just a lot of fun. Great shops to browse through. The
Legoland store is awesome! Lots of fun stores throughout the Marketplace, PI and the West Side.
There are other fun ways to spend time that do cost....things like the surrey bikes and water sprites that can be found at the resorts. There is also a couple putt-putt courses. I don't remember the exact costs but I do remember they were a bit expensive. But we're talking WDW, so I guess that shouldn't be too much of a surprise!

The pictures that I've seen of them to do look pretty cool.
Those are some of my ideas. Have a great trip!
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"Why do we have to grow up? I know more adults who have the children's approach to life. They're people who don't give a hang what the Joneses do. You see them at Disneyland every time you go there. They are not afraid to be delighted with simple pleasures, and they have a degree of contentment with what life has brought - sometimes it isn't much, either."
--Walt Disney