The folks that hit the record Powerball jackpot last week are probably having a pretty swell time, right about now. That said, studies have proven that money can't (always) buy happiness. A recent survey, though, shows that raises can. The results of a Gallup Worldwide Poll demonstrates that people are happier as their steady income increases. Owning a private jet will probably get you to Paris faster, but it won't necessarily make you happy (to each his own). But, receiving a pay bump that will allow you to get something that was previously just out of your price range—and improves your well-being (hell-o HBO)—does result in a spike in happiness. [Wired]