Watch over your shoulder*, and in your rear-view and left side mirror as you slowly back up. Now cut your wheels sharply to the right and back slowly - causing your front end to swing into the street (be careful in traffic!!!) and your back end to start entering the parking space. Pull up (or back) until the rear of your front, passenger-side door with the rear of that car. Pull parallel to the car that's parked ahead of the space you want to occupy, and maybe 18' from that car.
My father (who drove a lot) taught me how to parallel park.
