SIOUX CITY — Emily Nelson brings organization and elegance into pantries, cupboards and closets, areas of the home that are often overlooked.  The Siouxland woman founded Orderly Elegance, a professional organizing company, roughly two years ago. And, since then, the demand for her elegant, organizational touch has grown largely by word of mouth. Nelson, whose services are currently booked out through January, has organized 150 homes and more than 10 businesses.  “It’s a new concept that really hasn’t been in this area, so it’s been challenging to educate people on how organization is so important in their life,” she said. “Being organized just propels them for a great successful day. If…