Property crimes are generally considered crimes of opportunity. Therefore anytime you can reduce a "would be" thief's opportunity you increase the chances that you will not be the victim of such a crime. Great examples of reducing opportunities are:
Locking and securing your home when you are away
Locking your vehicle
Keeping valuables safely stored and out of sight
Engaging in activities where you and your neighbors watch out for one another, and each other's property. When suspicious behavior or activity occurs call the police.
Well placed lighting and careful consideration to where trees and shrubs will be placed can play an important part in reducing your vulnerability.
Mark your property and record a description that will provide you and the police with identifiable information in the event that your property is stolen.
Do not leave pocket books or wallets unattended in your vehicle or in a shopping cart.
Never provide credit card information to strangers for unsolicited purchases.
Review all monthly statements and charges for legitimacy.