Are you having trouble fighting off the winter doldrums because of the seemingly never-ending cold and snow? Well, let us fill you with some happier thoughts, mainly 60 miles of pristine, sandy beaches, mild temperatures and a wealth of accommodations and attractions. And best of all, it's even more convenient and affordable to turn those aforementioned happy thoughts into reality. Allegiant Air has announced new, non-stop jet service to the Myrtle Beach area from five cities, beginning June 3, 2015. The company, known for its exceptional travel…