"Most people spend a good deal of time and a little more than half of their energy, money and resources in an effort to make their homes more efficient, for both themselves and the planet. But five days a week nearly all of America goes to work, and some spend almost as much time at their place of work as they do at home. With more than 30 million of these workplaces are small businesses, and 18,500 firms of 500 employees or more, the workplace is...