Live in a nice neighborhood the police pay attention to. Install an alarm system which makes a lot of noise and calls the cops, probably most people trying to b

Live in a nice neighborhood the police pay attention to. Install an alarm system which makes a lot of noise and calls the cops, probably most people trying to break in will not stick around once the alarm goes off. Statistically the chances of a breakin, especially by some sort of violent uber-cat-burglar, are probably quite low. [Edit] And as another poster said, get a dog. It's the principle of parking a crappy car next to a Mercedes. You just need to convince the car thief to steal the other guys car, ie, convince the burglar there are easier targets around.