Here is a list I made for my Disney College Program a while back... I actually just posted it on another forum. I ended up doing most of these, with the exception of the ones in red...
Eat a turkey leg
Order a citrus swirl at the Sunshine Tree Terrace
Get a drink from every country in Epcot (not all in one trip, though... I'd prefer to remember the drinks I spent a fortune on...)
Go to the Food & Wine Festival several times
Ride the balloon at Downtown Disney
Rent a bike at a Disney hotel
Check out all the hotels
Rent a boat on Seven Seas Lagoon
Meet a Disney princess off duty
(bonus points if I take her on a date)
Go horseback riding at Fort Wilderness
Ride the Liberty Belle Riverboat at night (hard to do since it closes early)
Explore Tom Sawyer's Island (had never done this)
Explore the utilidors
Get a Jungle Cruise tour to myself/my party (we ended up just talking to the cast member)
Explore every trail at Animal Kingdom... even the hidden one
Go to the MNSS Halloween Party
Volunteer to be onstage at Indiana Jones
See the upstairs of the Imagination pavilion (*now strictly off-limits even for cast members)
See a famous person at WDW (Neil Patrick Harris, Marty Sklar, and Tony Baxter, and I actually loaded Cake Boss on our ride
)
Preview a ride (got to preview both Little Mermaid twice and the new Test Track 6 times)
See Cirque de Soleil: La Nouba
Go to both water parks multiple times (they basically became our swimming pool)
Go to both Universal parks
Eat the famous holiday sandwich at Earl of Sandwich
Eat at Via Napoli
Eat at San Angel Inn
Order a Kitchen Sink Sundae at Beaches & Cream
Pretty successful 4 months, all in all