You're driving in your car and you, out of the goodness of your heart, step on the brakes to graciously allow another car to cut in front of you. You are not expecting a medal of honor or a round of applause but would it kill the driver of the car to give you a simple thank you wave? It's the right thing to do. Yet, some folks don't give much thought to "the right thing to do." That's alright, because Karma…