It’s the pipe dream heard ’round the world: You stumble on a little beach bungalow, put in some sweat equity, and soon find yourself sitting atop a gold mine vacation home that rakes in the big bucks month after month. The advent of Airbnb may have made a least some of that fantasy a tangible reality—but becoming a successful vacation home host is still way easier said than done. From designing an appealing space to nailing the thoughtful touches that will keep guests coming back for more,…