While we're on the topic of guns, how many of you have cleared your house with a replica firearm like a Blue Gun? You may know every inch of your home, but have you tried clearing it in the dark, with a firearm? Learn what boards squeak in the living-room floor and how to cut those corners in the hallway before you need to do it for real. Close your blinds before doing this so your neighbors don't think you've gone postal, but practice and be prepared.
Some other simple things to do in your home are to always keep your shades/blinds closed, especially after dark. Don't give the bad guys an opportunity to see the layout of your house, covet all the things you own, and know exactly where you are while you're home. During daylight hours you may be able to spot someone surveying your home, but once it gets dark someone can stand outside just a few feet from a lighted room, and you'd never see them from the inside.
Most cops don't make a lot of money and can't afford an alarm system to be installed, so do the next best thing and get a dog. It doesn't have to be a very big dog, just one that barks. My dog is up and growling if a strange car pulls into my neighbor's driveway, and goes absolutely ballistic when one pulls into mine. Go to the pound and save a stray. You'll be doing a good deed for man's best friend, and the kids will love you for it.
Have police periodicals and magazines like this one sent to a post office box or to the station. Have you done a background check on your mail carrier, and everyone who works in the post office? Of course not. So why tell everyone that a cop lives at your address?
The same goes for wearing your uniform, or any part of your uniform, to and from your home. An ex-con can pick out a pair of police pants from a mile away. The same goes for wearing those PBA T-shirts while out in the yard raking the leaves.