Reversing. This is one aspect of driving where most drivers could stand to have a little improvement. And there's really very little time (or incentive!) to practice, because such a small fraction of time driving is actually spent backing up. 'If the only things I ever do in reverse is back out of parking spots, why should I really bother to improve? I can back out just fine; that's enough for me.' While this may be true, having confidence in reversing will help with all aspects of driving. Confidence in itself is a powerful notion, but even taking a little time to think about reversing will do wonders for your parallel parking, as well as for your general awareness and understanding of how your car maneuvers, backwards and forwards.

A good general rule of driving is don't hit anything. When you're backing, you're inherently at greater risk for hitting things, mainly due to unfamiliarity. People have a good idea of where their hood ends, but knowing where your trunk ends is a bit trickier. Now for those people who are spatially gifted and just 'know' exactly where all the corners of their cars are and can pull within an inch of any obstacle, you're all set. This is for the rest of us who are stuck guessing, or worse, feeling. A good thing to do is to look at your car from the outside and realize 'okay, the end of my car is roughly a foot and a half from the bottom of my back window.' If your car has a spoiler, then you have an easy guide as to where you car ends (usually just a few inches beyond the spoiler). If you drive a wagon or SUV, then your car ends a few inches past the back window. Pickup trucks go without saying; they're easy. The worst are cars that have sloped trunks and you really are just stuck guessing. Eventually you will learn to familiarize yourself with whatever you drive, but visual cues like spoilers and windows are always useful reference points.