I keep my negatives in binders like MattKing. Each (glassine) sheet contains one 135 roll, cut into 6 strips with 6 frames each. My sheets (Hama No. 9520) have 7 rows so my top row has no film and it contains a strip of paper with basic info like date, film type, camera, lens, filter, developer type, developer use and subject. So, each sheet is completely self-supporting and the binder can be looked-up independently from other data and scans on the computer. All the sheets are stored on date.
This is a compact way of storing films, and I keep all my films indefinitely (so far); my first film is from 1968
Glssine negative 'holders' have been banned from use by me for many years. They have proven (to me to be less than a safe means of storing negative... they tend to 'turn' a "yellow-ish colour" after few years in a 3-ring binder.
I cannot say that it IS the 3-ring binders... or the 'paper' from which the glassines have been made.
I now ONLY use my diminishing supply of the clear "plastic" marketed by "Pint File' (I'm not sure if they are still in business BUT their address Is PO BOX 607638, ORLANDO, FLORIDA 32860-7638.... they come in 'singleton' 4 per page (horizontal or vertical for 4x5) as well as 35mm negative and mounted 35mm slides and 120 film formats. they also supply 70mmand 8x10"
Ken
long-time medium for archiv