This comes via West Virginia University by way of Timothy Archibald.
He has few additions for commercial photographers:
The Bonneville Salt Flats
Delta Blues Musicians
Ruins Of Detroit
Surfers At Sunset
Anything On A Flatbed Scanner
In the comments, though, he goes on to say that, well, rules are meant to be broken, and a good photographer can take any subject and make it new. Still, given the unending flow of photos and the increasing poverty of images, it's probably wise to dodge a cliché.
(And so much for shooting squirrels nibbling flowers in the graveyard next to this homeless dude through the rear view mirror of my car. Damn.)