Canon Powershot SD1200 IS Pictures Looking Too Bright

Nope. You're shooting either

1. highly-reflective (chrome or water) subjects in bright sun or
   
2. close-ups of shiny things using flash
   

The first shot is thrown off by the dark car dominating the picture (which the camera tries to make a mid-tone, so everything else goes bright).
The second one, you're seeing the glare off the chrome; the sky and background look not bad.
The third one, you're victim of the inverse square law of light (if one object is twice as far from the light source as a second object, it'll get 1/4 the light. If it's 3x as far, it'll only getr 1/9 the light). The Clorox wipes got the full force of the flash that was trying to light up the back of the cabinet.
The fourth one - lot of sun reflected off the water. And you were shooting into the sun.

Times like 1, 3 and 4, try dialing in some - (subtract light) exposure compensation. With flash, just don't get real close with it. There's a limit to how much the flash can hold back.