9. Move valuables away from windows. You may want to leave a few shades open, since it can look rather odd to see a house all closed up if that is not your norm. However, do be aware of what is visible from those open shades when someone is peering in from the outside. Laptops, flat-screen TVs and other pricey gear within reach of a window make an easy mark for a smash-and-grab-type burglar.