I'm going back through negatives from about 1986 onwards, that was when my photography changed direction very significantly. (Essentially I switched from more commercial work to personal projects).
For about 8 years I had a burst of extreme productivity shooting mostly large format but also a lot of 35mm images alongside. I had so many projects on the go and really only finished and exhibited 2 from that period. Now looking back as I'm digitising negatives for probable publication I'm finding many images I've never printed, they didn't fit with the overall concept or I didn't feel they were strong enough at the time.
Some negatives while never printed I mentally catalogued at the shooting stage for possible inclusion in future projects, now these are slowly coming together as I scour through my negative files and I', building up an idea of which to print in the darkroom. I'm usually doing negative scans as well for a number of reasons, cataloguing, online/web use, possible publication. I prefer a negative scan to scanning a Fibre based print the alternative is to make Glossy Resin Coated prints & scan them to achieve similar quality.
When I look at the 35mm negatives things are quite different as I have made very few prints from them, I've only included 2 prints from 35mm negatives in exhibition sets. I will be re-evaluating these separately with a view to producing a more documentary exhibition set of smaller prints.
Ian