Thanks. You'd be surprised how many regular editing skills are applicable.
Generally it goes something like this.
- Dust & Scratches Filter
- Hue & Saturation to remove colour cast.
- Curves (increase contrast)
- Curves or Levels with layer masks (stain removal)
- Cloning, Spot removal
- Noise reduction. (helps with spots and paper textures)
- Skin smoothing action with layer masks (mould & spots & paper textures) - not always used.
- Sharpening.
I need to get better with using layers. I get the layer mask part all right, but all the different types/blends/flavours of layers is beyond my comprehension.



