I like to peruse the Full Contact Poker online forums to read and comment on posts about interesting poker hands and whether they were played properly. I find that many of the contributors consistently suffer from the same problem: they are far too preoccupied with statistically insignificant aspects of a poker hand.
When you play No Limit Hold'em, the ideal strategy is to take minimal risk, do little bluffing, and hope that weaker players call you when you have a strong hand. But that's the perfect world. Sometimes you'll face opponents that play very conservatively and will rarely pay you off when you have the goods.