The Argyle Sweater has sold nearly 1 million greeting cards through American Greetings, and more than 100,000 2011 calendars. With more than one million greeting cards sold, Scott Hilburn’s The Argyle Sweater dresses-up the funny page with an argyle-wearing assortment of cavemen, bears, moths, and pompadour-having humans, along with an occasional evil scientist. Boasting a…