Your neighbor buys a brand new BMW -- the same one you eyed in a catalog last week -- and you burn with envy. Your coworker purchases a new house and invites you to a housewarming party. You debate whether to turn down the invitation only because you're angry that you haven't found a home for yourself after a frustrating two-year search. There will always be things others possess that we wish we could own, too. But comparing yourself to others and always trying to keep up with the Joneses is the wrong approach. If you want something badly, work hard to acquire it -- whether that means saving money for years, cutting vacations for a while, or angling for a promotion. Once you have it in your possession, take pride in the fact that you accomplished a huge goal by virtue of your hard work -- that you rewarded yourself with something you truly deserved. In other words, what you achieve should revolve solely around you -- not what others do o...