I've been pinholing for two years now and have a good stack of paper negatives accumulating. And some, I think, are actually worth preserving! As they are now, they're starting to warp slightly. Hopefully they're not too far gone. In any case, I want to do something proper now in terms of indexing and storing them. So I have a couple questions: 1. What's the better method for storing these? I can get the PrintFile clear photo pages which hold two to four 5x7 negatives per page. Or I can get an archival box. (If it matters, this is Ilford RC paper.) 2. It would be good to write a number on the back of my print negatives, so I can match them to an entry in a spreadsheet I keep. At the same time, I want to have the option to contact print at a later date. My current approach is lightly writing in pencil on the back of the paper opposite a very dark part of the image. There has to be a better way. Thank you!