I once wore a suit to a first interview for a finance director position with a catering company. My prospective boss told me to wear something more casual in the future. His order alerted me to potential issues with the company; and although I did dress casually for the second interview, I decided against taking the job.
Lesson learned--If he notices, the interviewer(s) reaction to your clothes can tell you a lot about whether you want to work for the company. So I definitely wouldn't dress down, if you are looking for a "dressed-up" company to work for.
Originally Posted by whnay.
What does that tell you about the organization you were interviewing with?