I have done many interviews. Here's a few tips to add to the great advise already given....those questions you prepare in advance (and it is perfectly acceptable to have them written down and take out the paper in the interview) "how much does the job pay?" "How much time off do I get?" or anything else related to what YOU get...DON'T ask those questions. Your questions should be about the company, the position, what will be expected of you, growth opportunities, etc.

IF you arrive more than 10 minutes early....sit in your car or as suggested...at Starbuck's. It is uncomfortable and inconvenient for the interviewer if you arrive too early.

No gum chewing....no jeans.

Do not give yes or no answers. Elaborate.

At the conclusion, offer your hand and say...."I would really like this job!" And...as so many have suggested....a thank you note makes a HUGE difference. (By the way....be sure and ask for business cards so you have the correct spelling of names and addresses!)

And it is very acceptable to have notes and refer to them so you don't forget anything!

Good Luck!