How do you guys do when documenting your film rolls/negatives? I mostly bulk roll, and started some time ago to scratch a serial number in the emulsion on the lead of each roll, then I take notes in a little book with one page per roll/serial number, the date the roll was "created" from the bulk roll, when I put it in the camera, what camera it went with, when I take it out, development date, and other interesting information around the roll etc. The idea is of course to be able to backtrack good and bad results for future reference. Next step is to take notes on "recipes" used for development, and associate these with each roll. What are your thoughts about and your processes for this?