Customize your resume for the job you want. Proofread your resume. Don't worry about including information about your marital status, gender, height, weight, or health. Before you submit a resume to an employer, make sure it does the job. Ask somebody else to read it and give you feedback.
Preparation is paramount.
Blow your own horn, but be careful not to go overboard with the self-praise. Now that you're prepared to talk, get ready to listen. Don't focus so closely on selling yourself that you don't listen carefully to what the interviewer says and asks. Learn as much as possible about the company before you go to the interview. Find out as much as you can about the person who will interview you, through networking contacts or industry trade journals.