Leaving keys under the doormat doesn’t work anymore. If you still want your wide screen TV, your MAC and even your clothes to be there when you get home then never leave it under the mat, please. Gone are the days when people can leave their house with the windows wide open and the doors unlocked. Installing key lock boxes is more convenient not to mention more secure than bringing your keys with you everywhere you go. If you’ve got roommates and they frequently lose their keys, getting a key lock box is the smartest thing you can do. You can just agree upon a code and all of you can now get in the house without bothering each other to get home soon because you locked yourself out.