I only shoot about 100 frames per month of 35mm B&W. I am, by nature, not terribly organised, but when I started back at B&W a couple of months ago, I decided to start on the right foot!!!
The day after I develop, I sleeve the negs in a three-ring binder and write a simple description of the type of film used, camera used, developing details, and add field notes by frame as necessary. So far it works!!!

I have a question, though...Years ago, I had a photography prof who insisted that we use negative files which seemed to be made from a sort of wax-paper substance. He would not allow us to use plastic neg files; IIRC it was something about 'letting the negatives breathe'. Can anyone speak to this?