Instead, leave an extra set of keys with a trusted neighbor or friend. The best lock cannot function if you fail to lock it. Consider a home alarm system that provides emergency monitoring for burglary, fire, and medical emergencies. Never open the door automatically after a knock. Utilize chain bolt when checking identification.
Lighting is very importatnt.
Inside and outside lights give you a great deal of protection. Prowlers prefere the dark . Leave lights on at night, even when away from home. Change location of lights from time to time. Leave a light on the door you will be using when you are going to return home after dark.