Perhaps it’s partly because my mother owns a huge antique desk from Milky Way Farm (the former estate of Franklin C. Mars, founder of Mars Candies), but I pay keen attention to the annual flurry of “filler” news items about Halloween candy. “Prices up or down? What’s hot and what’s not? Should I call my manual laborer cousin and rub this sweet gig in his face or not?” (Think of the perennial sto…