Trust, kindness, friendship, shared values and mutual attraction are all important components to a successful marriage, but this is the secret to a truly happy one: Hire a housekeeper. Although the cost may require you to work an extra year or two before retirement, you’ll likely never have to experience your spouse throwing a toilet brush at your head when they’ve just finished a few hours of housecleaning on a Saturday morning and you’ve just come home from a long run and tossed your sweaty clothes on the bathroom floor.

Of course, another solution is to not marry a slob, but frankly, that will do nothing to support job creation in the service industry, so I would strongly encourage couples who care about the economy and their marriage to follow the secret advice noted above.