I have the good fortune of working for a company that has lots of holidays.  We do get MLK, Jr. off in January, as well as Presidents' Day in February.  We *ALSO* get Good Friday off in March (or April if it happens to fall then), so it's only a max of two months then until Memorial Day in May.  Sprinkle a possible vacation day off in March for my birthday and a vacation week off in May the week before Memorial Day for our New York trip, and a vacation day off for July 17, and several vacation days off in September for WorldCon.  When am I going to get any work done?  
