Considering the rapid disappearance of color films both slide and negative and contemplating the sizeable store of such in my freezer, I wonder if I should stockpile E 6 and C 41 processing kits. Does anyone have any thoughts about the shelf life of unmixed, factory sealed kits? Would refrigeration, NOT FREEZING, extend their shelf life? Its ironic. When I am finally able to afford used the gear I once only could dream of, the film to use in them becomes scarce. I would hate for my Pentax 645n kit, my LX's, my Retina IIIc, my Vitessa L to languish for lack of "fuel."