Turn Lanes

Is it illegal to not use your blinker when you are in a turn lane?  Everybody knows you are going to turn anyway.  What's the point?  I might be in the minority on this, but I am a no-blinker-in-the-turn-lane kind of guy.  I think it should be against the law to use a blinker in the turn lane.  People have a hard enough time just watching the light, now you want to throw in one more thing for them to do.  Come on traffic lawmaker guy.  Simplify.