If eyes are the windows to the soul, then surely the windows of a house are a gateway to the essence — the soul — of the home. No wonder that the way windows are dressed is one of the most important decorating decisions facing the homeowner. Window treatments are more than a decorating decision; they are also a very practical one. Curtains, shades, blinds, shutters — or any combination of these window dressings — must also serve a functional end: to admit or block sunlight and to provide privacy. Window treatments need to do far more than look good. They must work well, in addition.