In Doyle Brunson's book Super System, Doyle writes about playing aggressively. Example, after raising pre-flop, 90% of the time you should bet after the flop, even if you completely missed.
If a player has been calling you all the way (with your aggressive play as mentioned above) and a 4 flush or 4 straight shows on the board, it would be a good time to bet at it hugely, because the other player may have simply had top pair.
Play suited connecters as much as you can for as cheaply as possible, because when they hit, you can take your opponent compltely by surprise.
Never slow play Aces, Kings, or Queens, because if you do, a mediocre hand, like suited connecters will play and could bust you for all your chips. A raise pre-flop with these hands will force out the drawing hands that could be your undoing.