Good news: There is no correlation between the amount of money one spends on an experience and the amount of pleasure it confers. A meal with good friends at a brick-oven pizza place will probably make you just as happy as dinner at a five-star restaurant. That's a good thing, because spending money you don't have depletes happiness—no matter how delicious the tuna tartar. "You can't go into debt and be happy. The financial strain wipes out any benefit," says Howell.