One good suggestion for a better love life is to take regular nights away from home.
"For couples that have been together for a while, sex can become routine," says Castleman. "You're worn out by the end of the day, after the job, the laundry, the kids' soccer games, and the errands.
"And instead of champagne and oysters on the half shell with a sweeping view of Lake Tahoe as your reward, you've got your same old crummy house and peanut butter and jelly and that's about it," he says. It's not exactly conducive to an exciting sex life.