How often do you get into your glove box? Probably not very often. Keep it locked! This way if a thief breaks into your car, he (or she) cannot get the goods stashed in the glove box.
Do you keep a GPS unit in your car? Is the HOME location set to your house? Having your address set as your home location gives thieves the opportunity to drive directly to your house and into your garage, if you have a garage door opener in your car or SUV.
Keys in Ignition
This should be rather obvious, but it amazes me how many people leave there keys in the ignition. Maybe you park your car in your garage and leave the keys in it. Maybe you pull up to the ATM and leave the car running. Bottom line, do not ever leave your keys in the ignition if you or someone else is not in the vehicle. There are many news reports of cars being stolen because the keys were left in the ignition. Don't believe me check out this story about Chadwick Lange, a big-shot real estate broker, left the keys in the ignition of his black 2008 Maserati GranTurismo and it was stolen.
Do you have a spare car key hidden somewhere on your vehicle? If so, are you sure you have it in a location where a thief would never look? What if a thief finds the key? Maybe you should consider a Hitch Safe to keep your spare key.
If you must leave your key with a valet, attendant, or mechanic leave only the ignition key. Sometimes cars come with a special valet key. Make sure you give that key to anyone that will be driving your car but doesn't need access to your trunk or glovebox. If your trunk and glovebox use the same key as the door, have one of them changed. Don't give the attendant easy access to your glovebox and trunk.
Copy your license plate and vehicle information (VIN) numbers on a card and keep them in your purse or wallet. This might seem to be a great option, but what happens if your wallet or purse gets stolen? Instead of carrying the information with you give the information to a family member, and if you need the information in an emergency you can call that person. Make sure you do have your VIN information written down at home.