We always do at least a couple of things outside od WDW each time we come down to Orlando.
Kennedy Space Center is less than an hour away and is great for all ages
Gatorland is fun, so hokey and my kids loved it
Medievil Times dinner theater in Kissimee was lots of fun
minigolf - there are pretty cheap places just off property that are fun
Prime outlets for shopping
Busch Gardens and SeaWorld are close..we are doing them both this summer
the Gulf of Mexico is a short drive for white sand beaches!!
If I think of more, I will add them!! Have fun!!