I tend to just park at the end of the row, saves time, and I can stand to get a few more steps in.
What baffles me is how people are so lazy, they will sit in the middle of a parking lot, waiting for someone to back out. Take this aerial view from a grocery store near me:
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During rush hour, you'll have at least one person idly sitting in the feeder lane, causing a traffic jam for the rest of the customers. Often times, that will get backed up to the freeway... all so one clown can save 15 steps after waiting 5 minutes.