There are road trips you plan for months. And then there are the best kinds of road trips—the ones that simply happen. You're driving through a small Maine town with the windows down. Maybe you've spent the morning at the beach, wandered through a bookstore, hiked a mountain trail, or explored a quiet harbor. Then you see it. A hand-painted sign. A line of families stretching out the door. Kids with rainbow sprinkles covering their faces. Someone carrying a towering cone that