Well-lit areas discourage burglars by taking away hiding places. Be alert for unusual activities. If you see an unknown person loitering in or around a neighbor's yard, don't be afraid to check his or her identity with your neighbor by phone. Report any suspicious actions, sounds or strangers to the police. Use auxiliary deadbolt locks on all exterior doors.
Deadbolt locks with at least a one-inch throw, or rim locks, are the most secure.
Spring-latch units with the lock in the knob are a poor risk for everyone but the burglar. If there is any glass within four feet of the lock, a double cylinder lock requiring a key from both sides of the door should be used. Lock the doors when you go out, even if it is for just a minute. Use effective window locks. A safe lock can be made by drilling at a slight downward angle through the top of the bottom window sash and the bottom of the top sash and inserting a penny nail into the hole.