One of the things that people also do wrong after a wreck is they don't take pictures. We now have the ability, most of us, with our phones, to take pictures right then and there. Take a picture of the other person's license plate. Take a picture of any damages that are done to your vehicle and to his or hers. You want to make sure that you document the scene, and also if you can, get a list of the witnesses right then and there. Somebody's going to stop and offer you help. Ask them for their name and their number right then and there, because later on, if there's an argument about what happened, it may be very important to get in touch with those people.