I'm usually a purist when it comes to post-processing -- I normally do very minimal edits to my photos, as I feel that all the heavy-lifting should be done when I'm on location with attention to lighting, focus and composition. My philosophy is that great photography can be accomplished without fancy cameras or editing software, and I work really hard toward that goal (hence the hundreds of photos I take every week for outfits and landscapes).
However, I've recently loosened up a bit, and have cast a second look on some of my old work, especially photos that I normally would discard. In an attempt to better sort out my online photography account, I went through some recent photos that didn't make the original cut in my photography posts and reworked them by tinkering in Photoshop and Pixlr. The umbrella ones are my favorites, as that was a really fun shoot and I'm glad I was able to rework some of the leftover shots.