1: -) Always Be aware of your surroundings.
The worst thing you can do is have no idea who or what is around you.The more you pay attention, the less likely you are to be surprised.Also, if something does happen and you are a witness, you will be able to provide better information to law enforcement.
2: -) Watch your use of social media.
Some people put eveything on Facebook, from what they ate to how they did their hair today.Remember that the more someone else will know your schedule and can figure out when you are most vulnerable.
3: -) Carry a weapon only if you are trained and willing to use it.
Some women choose to carry pepper spray or a firearm as a method of defense.While that is fine, make sure that you know how to use your weapon of choice properly and effectively.Also, do not carry anything if you are not willing to use it because then it just becomes something that bad guy can take and use against you.
4: -) Do not open your house door without knowing who is on the other side.
Even if its someone who claims to be from the electric company, If you are not expecting them, then make them wait , while you call yourself and verify their identity that person has access not only to your home but to you and your family as well