Such as:
-Dispense Fast Passes.
-Make meal reservations 30 minutes in advance.
-Fire his own Buzz Lightyear Laser blasts (extra points if you hit Emperor Zurg).
-Clear an extra-wide space on Main Street for parade-viewing 10 minutes before start-time.
-Provide instant access to ride in the monorail operator's cabin.
-Grab the attention of the CM in charge of finding "Honorary Parade Marshall Families."
-Locate "front and center" last-minute seating at Fantasmic! (on nights when the wind is blowing AWAY from the audience).
-Provide speedy half-empty bus-trips to your resort (at closing time) from all parks.
-Escort you to the mostly empty "E-Ticket" attractions at evening EMH's.
-And make ANY mug a "free refills for your entire stay" mug that works in any WDW establishment.
Now, THATS a Pal Mickey!