Sherman is headed off to college this year. He took an extra year in high school in order to play sports a little bit longer. This gamble has paid off, and he is now headed off to college with a partial baseball scholarship. He knows that sometime soon he will have to replace the old pickup truck that his uncle gave him in high school, but he certainly does not anticipate being able to buy a new car with cash until well after college. He has never used a credit card before. What might he do to increase his credit score in anticipation of buying a car in the next several years?