Everyone knows it is important to lock your doors when you leave. It is just as important to keep them locked when you are at home. A lock won't do any good if you let the criminal in yourself.
Tips
Install a peephole in the door to check the identity of all persons at your door, including repairmen, delivery personnel, or salespersons.
Keep windows locked.
Do not let strangers in to use the phone; offer to make a call for them while they wait outside.
When you move into a new home or apartment, have the locks re-keyed or change all the locks.
Don't hide keys outside; criminals know where to look for them.
Never tell anyone on the phone you are home alone, and make sure children or babysitters do the same.
If you're a woman, don't list your first name on the mailbox or in the phone book. Use initials and last name only.