When I started with LF (4x5) I didn't have a darkroom in my small apartment, so preferred to load holders with E6 film. Now I have a 5x7 and want to develop/contact print as simply as possible. Back in the late 70's or early 80's I recall mention of a US Govt need for a developer/fixer combination for simplifying B/W processing of film. Someone had come up with a product for this purpose. Does anyone know if this went anywhere?. My workshop in Florida goes from about freezing to a very humid 80's+, so I need something that will work at a lot of temperatures. I am not looking for the perfect negative, just one that will contact print nicely.