Don't lock your car keys inside your vehicle. Hook them on your pinky finger.

There's hardly a time waster worse than locking your keys inside your vehicle. You'll either have to wait for a loved one or a friend to bring you a spare key, or pay a locksmith to open your locked door.

When exiting your vehicle, simply hook your keyring on you pinky finger and clench your fist. Do not open the door until the ring is secured on your finger. Before shutting your door, give your fist a squeeze and consciously feel the ring on your finger.

Do this every time and you'll never be locked out of your car again.