I never throw any of my photos away...well, unless they are totally out of focus or totally bad. You never know when you are going to find one of those hidden gems when you go back and look at older photos. An example is below. I was going through my old photos, and found this one. I never edited it though because the photo was a mistake. I wanted the guy sitting on the wall as his hat matched the color of the boat behind him, but this other old guy walked right into my photo, so I just accepted this photo as a mistake until last night. Now, when I look at the photo a few months later, I like it...and I like the guy walking...adds another dimension.