My motor runs cool....maybe too cool?

I thought that if the thermostat was faulty and open all the time, the engine would run too cool. Maybe I'm wrong?
By the time you get a temp gun, you will have driven yourself insane trying to figure this out. The car will still be THERE when you get the temp gun. Relax until you can verify something and then start diagnosing. You have nothing concrete to go on right now.