Research
Doing research gives you an idea of how you'll fit in and helps you understand what you can bring to the company. While you should know something about an organization before you apply, learning key statistics, like products and target markets, will increase your ability to anticipate interview questions and answer them intelligently.

Prepare
You wouldn't sail around the world without a plan. There's too much at stake. The same is true with an interview. Trying to "wing it" can get you lost and ruin a great opportunity. Start preparing at least one week before your interview by developing a list of questions. Good areas to cover include reporting responsibilities, advancement potential and the company's plans for the future.

Practice
Develop a list of common questions and practice your answers in front of a mirror. Better yet, rehearse your interview with a friend and have him or her rate you on clarity, completeness of answers and body language. Practicing will help you stay relaxed during the interview and develop skills that will come in handy far beyond the interview room.

Get Dressed
This isn't the time to exhibit your flair for trendy or unusual clothing. While many companies are dressing business casual or casual, wearing something conservative and comfortable is the best way to go. And don't forget about your shoes. Many nice outfits and first impressions have been ruined by a pair of dirty or unpolished shoes.

Arrive Early
Get to the interview location so there's enough time to fill out any necessary paperwork or applications. However, don't arrive so early that you're milling around the waiting room or receptionist's desk for hours.