Keep you door and windows locked! In a significant percentage of burglaries, the criminal enters the victim's home through an unlocked door. Even the strongest locks in the world are useless if you don't use them. Lock all exterior doors whenever you go out--even if you'll just be gone a few minutes--and also while you're at home, particularly at night.
Never hide a key to your home outside. Don’t use a hide-a-key, a fake stone, or place a key under a door mat. Burglars know all of the hiding spots. If you hide a key, a burglar will find it and use it to their advantage. If you really need to have a key to your house accessible in case of an emergency, consider giving a key to a side or back door to a trusted neighbor. If you lose your keys, always change your locks. You’ll feel much safer knowing there’s no chance someone can let themselves in without you knowing.
Last week it was Midnight and I did the rounds in the house to make sure the doors were locked, Before I went to bed. We have the lock on the doorknob and a dead bolt, and at night when everyone is home we use the chain. So our doors are triple locked. Now we live in a townhouse in an apartment complex. We have one neighbor next door, we are on the end. I went to bed and I heard noises, I thought in the house, I got up and looked around the house, and looked at the doors. All still locked. The noise was next door, but the noises carried and it sounded like someone else was in our home. I did turn on a few lights in the living room and the kitchen so if there was someone out and about the area outside they knew there was someone up. Of course we have both porch lights on all night.
Keep the doors locked. You do not want anyone to just walk in your home.