I've decided to start developing my own B&W film again. In the garage I have found two unopened bottles of Ilford Ilfosol S and two unopened bottles of Ilford Rapid Fixer. My best guess is that these chemicals were bought in 2006 and have seen temperatures ranging from, say, 30 to 105 F. Should I still consider using them for non-critical work? If it's not a complete waste of my time, I'd like to try since I need the practice. But I don't want to do if if I'm not going to get at least decent results. Thanks in advance for any advice.