Want to know the one thing that's most important to a successful marriage? That's easy. Walk up to your husband and surprise him with this one-question relationship quiz:

You: "Honey, what do you think is the one thing most important to a successful marriage?"

Him: "Umm, uh did you say something?"

And, well, there you have it.

Happily married couples typically say their relationships work better when they can sit down and gab one-on-one, like thinking, feeling adults. But who's got time for that? Actually, anybody who sleeps at night, if you follow the lead of Julie and Thom and their nightly visits to their "igloo."

"It all started one winter night years ago, when Julie had had a really bad day," says Thom, 33, a marketing director in Columbus, Ohio. "We were huddled under the covers of our bed, and Julie was describing how all the people who made her day miserable were 'bad polar bears' and how she didn't want any of the bad polar bears coming into the bedroom and how the bed was our refuge from them. You realize how embarrassing it is to admit this, right? Anyway, that's when we started calling the bed the igloo."

"The igloo is a place to retreat to," says Julie, 31. "It's our little sanctuary; only nice things happen in the igloo."

Eventually Julie and Thom began holding a powwow in the igloo at the end of every day, making a nightly excursion that Julie says has become a vital part of their five-year marriage.

"It's funny, because I always thought that when you lived with somebody, you'd automatically know everything that was going on," she says. "But we find that if we don't take that time to connect with each other, it's really easy for life to get in the way. The igloo offers one of the few times in the day where there's not a whole heck of a lot else going on, so you're able to focus on each other in a deeper way."

Of course, you don't need to christen major pieces of furniture with cute nicknames to improve the communication in your marriage. You simply have to set aside a few minutes every day to remind each other of why you got married in the first place. And there are as many ways to do that as there are marriages in America.

Lori and Joe, who are happily married in Philadelphia, have a nightly ritual they call crook time. That's when Lori cuddles up in the "crook" of Joe's shoulder and they talk. "The name's a little sappy," Lori admits, "but it's always a nice way for us to catch up."

Every night, Angie and Bob walk their pet Chihuahua, Chachi, through the streets of Brookline, Massachusetts. In addition to keeping Chachi from picking dogfights he could never win ("He has a bit of a Napoleon complex," Bob says), they use the time to strengthen their 11-year marriage.

It may be going a bit far to emulate Tim and Jill, a Connecticut couple who somewhat sheepishly admit that they check in with each other from work "six, maybe seven times a day," Tim says, "sometimes a dozen times when we're really being crazy." (Jill says, slightly more defiantly, "He's just my best friend, and our marriage is a great partnership, and there's no one I'd rather talk to.")

Then again, if you've been married 10 years and still want to talk to each other 10 times a day, you must be doing something right.

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