You should never attend an interview empty handed. At the very least, you should bring a copy of your resume. If you are being interviewed by a team, bring a resume for everybody that will be attending the interview. References are also required. Do not wait for the interviewer to ask for these. Offer them. Avoid carrying a handful of loose leaf papers. Carry your documents in a professional file and briefcase. If you hold a professional license, you should bring evidence of your license to your interview. Bring anything that proves that you are legally able to perform the job that you are applying for.