I put the exposed sheets into glassine envelopes before firing them into an old film box. In order to know what kind of development each neg gets, I first cut notches into the envelopes edge...one notch for N development, two notches for +1, etc. I guess I could have a box for each kind of developing, but there's only so much room in my backpack and the glassine stops the negatives from rubbing against each other.
Location, date, lens, film holder number, exposure information, and a rough sketch of the scene are also jotted down on the glassine envelope at the time of exposure.
Murray