Professional Dress
A guide on how to dress and how not to dress for a interview
What to Wear
A Nice Tie
Make sure that it matches your suit though
Nice Shoes
Also make sure that these match your suit and your tie.
Finally a Nice Suit
You have to have a suit, DUH.
What Not to Wear
NO Sandels
Don't wear sandals under any condition even if it seems like it makes sense
NO Shorts
Shorts are comfortable but are very unprofessional (unless you are a lifeguard)
NO T-Shirts
T-Shirts are a great way to express yourself in public, just not in front of your boss