On bright, sunny, high contrast days, when shooting in jpg, as opposed to raw, it might be wise to set the contrast to -1. Otherwise, I tend to get blown highlights and too much contrast. Of course, then you'll end up gnashing teeth when you forget to change it back to 0 or +1 for dull, dark days.
Shooting in raw avoids this, letting you decide how much contrast or sharpness or saturation you want to apply to the image. It really is the best way to go.