Apologies to Mark Twain, but don’t pick out a headstone for in-store shopping. While some consumers are forgoing the crowds and lines in stores in favor of shopping online for their holiday-related purchases, many still enjoy the in-store experience.   According to a recent CivicScience survey of nearly 15,000 U.S. adult consumers, 27% plan to do as much of their holiday shopping as possible online this year, and 29% expect to conduct more than half of their holiday shopping online. But there ar...