Motion sensing lights can be an inexpensive way of reducing your chances of being a Victim.
Just a quick look on line found motion sensing flood lights for less than 15 dollars at Wallmart, Home Depot, and Lowe's. Using them on the outside of a home or business can provide a warning of intruders getting ready to enter or conducting surveillance of your location.
Using four systems around this small home can provide you with a advanced warning system.
Anyone conducting surveillance has a chance to be noticed, plus they know this is one more thing they will have to overcome to launch an attack on you. Yes they can shoot it out with a bb gun or something, but that is still one more thing they have to do, to get at you. So you can add more alarms, more cameras, but for a reasonable amount of money you can add one more layer of security.
For those with existing lights and very little expertise in installing lighting systems, here is a backup way to get a system started, for less that 10 dollars each ;