Taylor Swift, the gorgeous 18-year-old country star, is the latest celebrity to take part in the Got Milk? campaign. The text accompanying the ad says: “Swift Pick. In this business, you’ve got to be decisive. So I choose milk. Some studies suggest that teens who choose milk instead of sugary drinks tend to be leaner and the protein helps build muscle. So eat right, exercise and drink 3 glasses of lowfat or fat free milk a day. Music to my ears.” This campaign has been going on forever, hasn’t it? I can’t think of any other PSA campaigns that have run this long.