I have to add- Bad beats happen.

If I am in a game and I bet, I bet the pot. This prevents good players from getting a read on the strength of my hand. So, while I say you should bet 1.5x the pot, if you do this when you have a set, and then say, bet 1/2 the pot with TPGK, good players will get an easy read on the texture of your hand.