There are probably few things more frustrating than locking yourself out of your car. It's humiliating to be standing there with your keys inside the car, just beyond a glass window. If you're at home, you can probably get yourself a spare, or if you at least have your cell phone you could potentially call someone who can help. If you're out somewhere and your phone is also in the car... things get a lot trickier.
Luckily, there's another way to get in if you're ever locked out!
Start by creating a hole in a tennis ball using either a hot key or a heated screwdriver and using that to very carefully burn a hole into the ball.
Once you've got the ball prepped, press the open end up against the lock on your door handle.
Next, forcefully press the ball against the car door as hard as you can.