This is an excellent post with lots of professional grade advice.
One suggestion that I would make is, if your camera will allow it take your photos in RAW (NEF) format. This will allow you to backup the photos and make your modifications to those backups. Never make your photo modifications to the original photo. Each time that you modify the photo, it is degraded.
If JJEH will allow me, I would like to pose another question related to his original problem. That is: "How do you deal with the filing of your photos after you have taken them in a way that allows you to quickly and accurately find and post them after you have taken them?"
The advent of digital photography has allowed us to take many, many shots of the same scene. Often these vary only insignificantly with each other and the selection of one over another is purely subjective. I find that I have a personal aversion to deleting one unless it is completely unusable.
I have tried a number of photographic programs and never settled on one over another, consequently, when I download the photos to my computer, they frequently land in no-man's-land. Each computer that I buy, each camera that I use, etc., each brings its own photo handling software...and then I have fallen prey to the marketing of several that I have added myself. Currently on my MAC I have iPhoto, Aperture, and ViewNX 2. Many, if not most, of my photos are only filed by the date taken so I spend more time looking for something than I did taking it in the first place.
Most of my life is lived in a state of organization that some would characterize as approaching neurosis. However, my photo life is a shamble. I would welcome some suggestions as to a simple procedure/system to clean up my "photo clutter".
Bob