If you’re visiting bars and clubs late at night, it’s a good idea to take a taxi home and avoid any dark alleys and quiet side streets.
Park your car in well-lit areas with a lot of pedestrian movement. Do not leave anything unattended in your car when you are out. This especially means not leaving anything visible, even if you deem it worthless.
If you choose to go along some of the more isolated areas, bring a friend with you. There are a lot of areas that you can choose that have many people around.
If you leave any item of yours unattended, you are risking it being stolen, even if you are gone for less than a minute.