In reply to stroppygob:
I think it was watching a video by David Noton a few years ago - he explained his workflow; it looked good to me and that's what I've followed ever since (based on Lightroom):
- convert RAW file to 16-bit TIFF
- crop
- clone dust spots
- consider lens profile correction
- set white balance
- recover highlight and shadow detail using Recovery and Fill Light
- adjust overall tonal adjustments using Point Curves
- adjust overall clarity, vibrance, and saturation in the Presence panel
- tweak individual colours using the HSL panel
- make local corrections (mostly dodging and burning) using the Adjustment Brush panel
- fine-tune settings using the Detail and Vignette panels
- sharpen image in the Detail panel
- final output (8-bit TIFF)
- copy to HDD
- back-up (x2)
David Noton reckoned 8-bit to be good enough for the final output.