I often find that I like the content of the picture I took, but my technical skills were lacking when I pressed the button. Back in the days before digital cameras, that could get expensive - printing out all those photos that just didn't quite pass the test. Now you can simply delete the bad photos OR you can use a little editing to see if you can turn a not so good photo into something interesting.
Before - not too bad
After - but this one isn't too bad either