If you're shooting Jpegs, you should try going up or down in half-stop increments, as Jpegs have less margin for error.
Shooting RAW you have more leeway for tweaking the exposure later on in processing, and as I always shoot RAW, I go up or down from the recommended exposure in 1-stop increments. Less fuss out in the field, where I want to concentrate on the lighting and composition
Practice will make judging a scene easier and more intuitive, so that you'll know what adjustments are needed. See also Digital Blending
One exposure, exposed for the foreground (sky burned out)
bracket two exposures and blend later