A lady in my neighborhood set up a shelf and sign outside her house as a free library, bonus it's near an elementary school. I decided to support her awesomeness by getting books for it. I went to the library and bought books from their friends of the library sale shelf. When I paid the librarian for them and explained the whole thing, I said doesn't that just warm your librarian heart? She said "It gives me unicorns inside". :)
That both rocks and rolls.