Ok I am just going to give you a little list of ideas:
Put the numbers for the EPCOT UK Phone booths in your cell phone and prank fellow guest:
Center - 407-827-9863
Left - 407-827-9862
Right - 407-827-9861
Go on a photo safari…list a number of animals and try to get as many different pictures of them in each park (goat, donkey, camel, mouse, bird, fish etc) – you can do the same thing with characters images (the more obscure the higher the points).
Visit each restroom through out each park and resort giving each one a star rating for cleanliness, convenience, theming, etc (Cavy has been meaning to do this but hasn’t finished yet).
Do the rides and shows you normally would skip.