Well, I work at a Library, so unless someone can invent a doomsday device that somehow runs on Stephen King Novels, I'll be fairly useless.
However, I might be able to use my knowledge of literature to sound really, really smart, and then worm my way into a cushy position as an advisor to whoever comes out on top of the inevitable power struggle between all the ambicious would-be world leaders in our community (You know who you are)
But if that doesn't work, I could always just get a bunch of friends together and colonize an abandoned vault.