Started hanging the tinsel yet? Ordered the instant latke mix? Mixed the punch and dragged out the Dickens? While personal preparations for the December holidays may be a ways off, mid-August is a good time for marketers to start planning their campaigns. Bill Tancer, general manager of research at Experian Marketing Services, has just released The 2010 Holiday Marketer: Benchmark And Trend Report. He spoke with Direct Newsline about holiday trends and myths