There is no short cut for parking nicely, because the length of the parking spot or how close between your car and the car in front of the parking space may be differenent everytime, but try not to stop your car too close to the car in front, slow in speed and fast steering action will help, because you will have more time to correct the angle of your car when the speed is slow and distance is longer. Try to remember how your park the car everytime, if you do things with your heart, you'll get it better when you have more experience.