How can you really try to prevent car break ins?

I know the first rule is never to leave anything inside, but is there anything else we can do? We are looking at an apartment in River Oaks, close to Buffalo Bayou Park and with easy access to the highway. The place is just perfect to our needs, but one of our cars would have to be parked on the street sometimes due to limited parking spots. We drove around and it seems easy to park in the area, with lots of houses and such. However, I would like to take all the precautions to prevent a car break in to happen (even if I know it can happen no matter what).