Three things that are often forgotten but very important.
1) Send a cover letter unless the requisition says not to.
2) Send a resume follow-up letter about a week after the position opening closes. If you don't know that date, send it about 10-14 days after you submit your resume.
3) Ensure that all of your job search documents present you as someone who accomplishes things (rather than someone who simply does things).
Following these three tips will put you ahead of most candidates.