Many homes and indeed businesses suffer from unwanted solicitors. They can be disruptive and harassing. In order to deter them, it is helpful to have a clear sign to this effect. For homes, they can simply be attached to the front door or slightly off to the side, potentially next to the doorbell. Offices and workplaces can have them placed at any main entrances but also in the parking lot and around the grounds in general, potentially deterring solicitors from entering the area altogether.