The first thing you have to understand is that casual business is not an ordinary appearance. One thing to consider, you must wear something that will force you to look smart while working. The casual small business look is really very versatile. Regardless of what season, choose your important outerwear. Dresses are a simple choice for business casual clothing. Pants are the clear choice and the main choice for most women in the workplace. Business casual clothing is the most difficult to define. Combining pants and matching blouses gives a casual look but still chic in the summer.