I work during the day and worry about day time break ins. Can you give me any suggestions about how to make the house appear that someone is home during the day.

One of the things that i would suggest Silvana is for you to leave your home in exactly the same way when you are not home as you would if you were home. Leaving kitchen and living room lights on timers and leaving  the TV on are options . Parking a second car in your driveway is also a deterrent. Having newspapers and fliers put into a newspaper box instead of having them left on your front step is also suggested. Depending on the layout of your home, any alarm systems or fencing you have and whether you live in a suburban subdivision or country can affect some of these options. Thank you for your question