Go to the Greek Quad and stand near the frat boy who buys pictures. With your back facing the frat boy, take out your camera and snap pictures of the cheerleaders that are practicing. After taking all the pictures, turn around and sell them to the frat boy. He will charge $6 and will give you $4 for each picture. If you stand too close to the cheerleaders they will react to the flash and you will get less money for the pictures. This can be done repeatedly without penalty.