Opportunity is missed by most people because it is dressed in overalls and looks like work. - Thomas Edison
A suit? Wtf is a suit? Our rule -- come clothed... but expect us to make fun of you if you walk in the door wearing pink spandex.
I had a sales rep years ago that ignored the advice not to wear a tie (and don't come without a 12 pack). He brought the 12 pack, but wore a tie. He left sans a tie, snip snip