You'll know friends and family by the sound of their voices. Other expected visitors, like plumbers or cable installers, should identify themselves and their companies. And if someone buzzes that you don't know or don't expect, don't let him in. Always make sure the lobby door locks after you enter or leave. And don't hold the door open for people you don't know without first ensuring they live there.
Lighting is one of the best deterrents to burglary.
According to many crime prevention officers, about nine out of ten burglars will choose not to enter a building that is well lit. If you live in a ground floor or garden apartment, strong locks on the windows or bars fastened to the masonry will improve security. Otherwise, these windows can be forced open easily. For security and beauty that last a lifetime, look for locksets with Schlage's Ultima Lifetime Anti-Tarnish Finish. Make your home remodeling project complete with new door hardware from Schlage.