I cleaned out a cupboard in the bathroom and found two old Gillette adjustable razors I haven't used in probably 40 years. They are a little gungy, mostly from soap scum. Until recently, I used cartridge razors for most of those forty years. But I kept these Gillette razors as a packrat would and toted them all around the world throughout two careers and into a recent retirement. I plan to at least re-acquaint myself with these razors after I clean them up and see how they compare with my non-adjustable DE razors and the array of DE blades I've now acquired. So, what suggestions do you have about how best to clean and maintain them. I was even thinking of adding WD-40 to the mechanism. Thanks for your help.