If covering your windows with curtain panels made of fabric is not a choice, consider using etched glass film. The Etched Glass Window Film self adheres to any smooth glass surface. The translucent image is visible from both sides of the window, providing style and privacy simultaneously. This thin, flexible window film is made of a durable vinyl that can be removed in minutes and leaves no residue.
This is a great do-it-yourself project for the weekend, easy to apply, which provides UV protection and is not affected by heat, cold, steam or humidity. The film comes in 3 different sizes and is available at Home Decorators.