The number one mistake I see in clients who come to me for help as re-applicants to medical school is that their original list of schools is not congruent with their GPAs and MCATs.
In choosing schools for reapplication (or for first-time submission) ensure that you have at least ten to twenty schools whose average MCAT scores and GPAs are lower than or the same as your numbers are. Having no "safety schools" is - as it were - not safe. Check out this summary of the MSAR for a quick reference. Consider international schools if your numbers are lower than those on the MSAR summary.