Here is a great video where 86 burglars were asked how they broke into homes and what they looked for whenever they were finding a home to break into. Watch the video to see what exactly is going through the mind of a burglar and what you can do to reduce the chance of your home getting broken into.
http://www.kgw.com/news/investigations/we-asked-86-burglars-how-they-broke-into-homes/344213396