5 easy ways to make any marriage better

There's no way around it: A happy relationship takes hard work. And in his new book The All-or-Nothing Marriage ($28, amazon.com), psychologist Eli Finkel tells you what you can do to make yours flourish. But if you don't have the time (or energy) to do any heavy lifting right now, there are a few shortcuts that can help improve things instantly. Finkel, who has studied thousands of couples, calls these quick fixes "lovehacks." They take little time and don't require any cooperation from your S.O.