Why not wear a twin set with a pair of relaxed slacks for a business casual outfit? Get a twin set with matching top and cardigan. Wear the cardigan open and loose. Wear your twin set with your favorite pair of slacks, or with the pants from one of your business suits. Alternating it with a twin set, is one way to get yet another work outfit out of a woman’s business suit. However, this look is pretty relaxed and suitable for a business casual outfit only – if you have an important meeting that requires formal business attire, then wear the full business suit.