I've pretty much gone over to the Dark Side (digital!) but I still like to shoot and process an occasional roll of b/w film, scan it, and then go digital. When I was shooting film more intensively, shooting a roll or two of film a week, keeping chemicals fresh was not a problem. But now, I find my chemistry expires before it's used up... can anyone suggest a way around this? For developer, I've used plenty of D-76 in my day but now I think I'd be better off with HC-110. It has a much longer shelf life in the original concentration and I can mix up a dilution such as B as a one shot as the need calls. But what about fixer? I've been using Photo Formulary TF-4 but its shelf life of the working solution is only 6 months. And a liter of the stock solution makes 4 liters working solution, way more than I'll use at my current rate of b/w film shooting. Any suggestions? TIA!