The second most frequently asked question about Presidents Day probably has to do with apostrophe placement. Unfortunately, it doesn’t have an easy answer: Presidents Day, President’s Day, and Presidents’ Day have all been widely used since the holiday’s inception in the 1960s. (Before that, it was known only as Washington’s Birthday—not Washingtons’ or Washingtons—and that's still what the federal holiday is technically called.) Answering the most frequently asked question, on the other hand, is a little more straightforward: What’s open? Since Presidents Day is a federal h...