Car Key Tip

Put your car keys beside your bed at night.  If you hear a noise outside your home, or someone trying to get in your house, just press the panic button for your car.  The alarm will be set off and the horn will continue to sound until either you turn it off or the battery dies.  This will scare away someone trying to break in. 

Also, remember to carry your keys with you while walking to your car in a parking lot.  Use the panic button if someone is suspicious or trying to attack you.  The alarm may scare them off.