What gauges do you actually look at?

Water temp, oil pressure, volts and tach. Well and the speedo of course.
I have blew up (locked up) two engines in my life and one was from overheating in my old s10( didn't have a gauge just a idiot light) by the time the light came on it was too late. It locked up. The other one was my slant 6 in my dart . My oil pressure dropped and at the time I didn't realize how big a deal that was...lol needless to it didn't make it home. So now water temp and oil pressure are a must for me!