One thing you can do pretty easily is to grab some decorative gridwork from Home Depot and get it cut to fit over your windows or sidelights. Then in an emergency, you can screw these in – being sure to hit the studs for added strength. If you are a renter and your landlord is okay with it, you can add this ahead of time to make it more difficult for people to break into your house by smashing a window and reaching through to unlock the door.
