Second Suggestion

Second suggestion:

During the interview, ask the interviewer for his business card, which will have his address on it.

When you get home from the interview, mail a written thank you to the interviewer to thank him for his time.

He will appreciate it and that little gesture will separate you from the rest of the job applicants.

He will also know that if you are that polite to him, you can be equally polite to customers and co-workers.