Originally posted by OniFactor i think you need to develop a new workflow, based around your layers. i always start by doing this
open image (adjust raw if it's a raw file, not jpg)
create new layer
copy image, paste into new layer
DO NOT TOUCH THE VERY BOTTOM LAYER!!! it's there so that you ALWAYS have something to go back to. i color code it red, so that i know not to.
prioritize how you're gonna work. in CS3 you can create notes, so if you see that maybe the eyes of this portrait need some pop, or the teeth in that one need to be whitened, that other one has a blotchy skin tone in this certain area, you can circle it, mark it out, what ever you'd like, and write a note that will be like on it's own layer.
every time you finish a 'section' (i do sections by hair, skin, eyes, teeth, lighting), create a new layer, and you can paste the contents of everything below it, into that new layer. this preserves EVERYTHING that you've done, and makes it so you can undo areas at a time, instead of actions. you can also color code these, so that you know everything in blue is skin work, everything in yellow is adjusting the lighting, etc, etc..
That's an impressively organised and disciplined approach. Really inspiring, as I tend to be a bit haphazard. Thanks.