Yup. Unless you play <10% of hands or >50% of hands it really won't make much of a difference to the players around you.

Oh, and bluffing does work - you just have to watch the players who fold to flop bets. If you're in a hand with one or two of them and an anonymous flop hits, bung in a 4xBB bet and watch them scamper away. If they call, then make sure you improve on the turn or check/fold; if they raise, fold. But say 75% of the time you'll win.