Division of labor, or, why you should do the dishes -- Loss aversion, or, the upside of going to bed angry -- Supply and demand, or, how to have more sex -- Moral hazard, or, the too-big-to-fail marriage -- Incentives, or, how to get your spouse to do what you want -- Tradeoffs, or, the art of getting over it -- Asymmetric information, or, why you should tell your partner stuff -- Intertemporal choice, or, being a good person when you get around to it -- Bubbles, or, making the good times last -- Game theory, or, how strategizing like Khrushchev and manipulating like Kennedy can make for a blissful marriage.