I use Printfile pages, the ones that hold 3 strips of 4 negs each. I like to keep the number of "end" negs to a minimum - better for neg holder positioning. I keep them in very nice binders, but I agree with Garry and may transfer them to boxes. You can get nice clamshell archival ones with binder rings, here is one, but there are others - http://www.bhphotovideo.com/c/produc..._Box_1_5_.html