Tonight I discovered an amazing website that was published as a book, Overqualified. Best to let the author describe the project, based on actual letters he sent to companies:
"Cover letters are all the same. They're useless. You write the same lies over and over again, listing the store-bought parts of yourself that you respect the least. God knows how they tell anyone apart, but this is how it's done.
And then one day a car comes out of nowhere, and suddenly everything changes and you don't know if he'll ever wake up. You get out of bed in the morning, and when you sit down to write another paint-by-numbers cover letter, something entirely different comes out.
You start threatening instead of begging. You tell impolite jokes. You talk about your childhood and your sexual fantasies. You sign your real name and you put yourself honestly into letter after letter and there is no way you are ever going to get this job. Not with a letter like this.
And you send it anyway."
Dig into the archives here. After reading the first two, I was already in love.