i live on a street that has had the record for home invasions in san antonio thus far. that said, ive done a lot of research on this topic.
some things i have done to better protect myself and family:
1: added large steel doors. most home invaders are either let in or kick in the door. make the door kickproof and it aint happening. one thing i found that i did when i had a wooden door was cut the head off a bolt after screwing it into the frame when the door is mounted on the hinges, and drilling two small holes in the door for the bolts to fit into when you close the door. makes it virtually kickproof
2: motion sensing lights. turn on when somebody approaches from the outside
3: bought a cheapo $30 security video camera on ebay, and wired it into my TV so i could just turn on the tv and check whos at the door before opening late at night, or even have it on PIP if im watching TV. a lot of home invasions rely on the homeowner opening the door to see who is outside.
4: installed a security alarm with a panic button so the kids and wife could use if im not at home and somebody comes in. it also has a loud door chime if the door is opened.
5: bars on the windows. already had them but they help against window entry.
6: making sure any door that has a window next to it has a key lock, so they cant just break a tiny window, stick their hand in, and turn the deadbolt.
ive had my home broken into before, have come home to people inside my house before, and have had to get up and see which crackhead is knocking at the door at 2am numerous times. security at this point is part of my life.
not everybody that has their home invaded is involved with drugs, and to all the smartasses that say to move, not everyone has that option. i fought tooth and nail to buy my own house, its a really nice house but just so happens to be in a pretty shitty area. the neighborhood itself is halfway decent, but the two main streets lining it are the worst in town. either way its MY house, and im proud of it. sometimes running isnt always the answer.