Every little bit helps. Just have to remember to go around and turn them all on/off. A perimeter alarm is a good idea too for places like a side or back yard. Uses a pull pin/tripwire. I reinforced the door frame on my back door. The door is steel, but I ran 4" Wood screws through the door jamb plate to pull the two studs together a little better, then ran a steel strip down the jamb and used 4" wood screws with double washers (small/large) to secure it. It will take some work to get through the door, but you'll make lot's of noise doing it and give me plenty of time to get the shotgun.