Leave them with a trusted neighbor. Chain Locks Chain locks won't stop a person from coming so it is best to see who is at the door before opening it. So you can see who is outside before opening the door. When you move to a new house or apartment replace the old ones with new ones. You don't know who holds the key.
Deadbolts are a necessity and provide added security.
After dark is best to pull your shades or curtains to prevent someone from looking in your windows. Shrubs and Bushes Try to keep shrubs cut back below your windows and around doors to prevent someone from hiding in these areas. Lighting Lighting is one of the best deterrents for warding off a would be robber. Motion detectors are wonderful and provide adequate coverage. Timers placed on various lamps throughout the home are also recommended in the event you are not home before dark or while vacationing.