<p>Every year thousands of men and women across the world sign on with direct selling firms and other direct selling companies-hoping to make money enough to buy new clothes, a new car, or a new house. They sell a little merchandise to a few relatives and close friends. Then they are through. They quit before they give themselves a chance to learn the basics of success in sales. "I am simply not a born salesperson," they often say.<br><br>No one ...