A regular bathroom sign is useful, but it does not protect the privacy of users the way an "occupied" sign does. A bathroom occupied sign provides an additional layer of security for the user, and makes for a more comfortable bathroom experience.
• Make it easy for occupants to let other users know that they are in the bathroom.
• A slider sign looks good, and is functional in a simple way.
• A good bathroom experience makes for a happy work environment, where people are less irritated and more productive.
• Simple, functional designs look great in any environment.