The classical images of the devil are always of an ugly horned brute that uses his pitchfork to herd hordes of shabbily dressed sinners into flaming lakes of lard. I think it's time to forget that image, and face up to reality.
Today's devil is obviously a smart, suave, and urbane gentleman who no longer works in some dirty subterranean cavern. I mean he's been doing his job for a long time, and punishing uneducated medieval serfs, is neither satisfying, or challenging. The world today offers so many creature comforts. So as they say, I think he has moved on up to the east side to that deluxe apartment in the sky. So instead of poking miscreants with pointy things, what does the modern devil really do day to day?
Why the answer is easy. He invents, and designs products that vex all of us. Where do you think things like derivative funds, technical support call centers, Windows Vista, Farmville, Santa Dreidels, and boat designs all come from?