When many of us take a vacation we seek to relax. We spend long, lazy days on a beach chair and socialize the night away with fancy cocktails, and indulgent desserts. Too often, we return home drowsier, heavier and flabbier than we’ve been since, well, our last vacation, with no memorable events to recall. Here’s how to break that pattern, and turn your next getaway into a memorable, rejuvenating experience.