I have found that I can breathe new life into my images by going back and re-editing them.
I know my photoshop abilities are a lot greater than they were a little over a year ago.
If you look throughout my gallery, and want to recommend shots that could be re-edited, go ahead and let me know....I have been working on some really old shots, and I am much happier that I edited them in some way, even if it means just framing it properly, or re-cropping. However some need a total makeover.