A 42-year-old man comes to the clinic for a health maintenance examination. He has a 20-pack-year smoking history and continues to smoke one pack per day. He tried to quit once about 5 years ago using nicotine patches but relapsed after 2 months. He drinks 3 to 4 beers most weekend evenings and does not exercise. He works as a long-distance truck driver and eats most meals at truck stops. Which of the following is the most appropriate next step in management?