I would also think about motion detectors, that flash on lights as they sense motion and also put the pictures on a computer at home in a hidden, locked room.
I would also go to some security companies and ask their opinion.
My brother owns such and has firm ideas on what should be done. And I'd also think about inside hidden "nanny" cameras. They are tiny and easy to hide.
If I had some cash to spare, I'd put in new windows with metal guards on them if I lived in the country, and new doors with wood or plastic over metal, and bigger door sidings.
And if you have a garage that is connected to the house by a door, for goodness sake get a metal door with massive wood sides to fix it on. That is one of the favorite places to hide and break into a house.
Also, if you can possibly get along without them, GET RID OF YOUR DOGGY DOORS. Around here folks shove small children through them so the kid can open the door or window for dear old daddy and friends.