Business Casual

I work in a business casual company. People interpret this many ways....from jeans[V] to dress shirt, dress slacks, nice shoes. The common attire is probably khakis/wool trousers and a button down or polo/golf shirt. So...in an environment where wearing a tie would be taboo, what are some interesting takes on the biz casual dress?

--Down with Business Casual, take part in "Wear a tie Wednesday"--