Not being alert in parking lots
If you go to the grocery store at night, don't be shy about asking for an escort to your car. Too many women are abducted from parking lots or even raped in the parking lot. Look in your back seat before entering your car. Cars provide endless hiding places for attackers, both inside them and in between them. Be aware of your surroundings by looking to the left and right and behind you with your head up all the time. You may appear paranoid and look funny to others, but an attacker will think twice about approaching someone who appears so aware of what's going on. Consider carrying a stun gun or pepper spray for safety, don't get caught off guard.