I too have a good collection going. They are either cased or bagged, some remain in their sheaths while others are removed, depending on sheath type and such. Folders are all stored folded. All knives are treated with tuf cloth, which goes on wet, dries quickly, and leaves a nice film coat that prevents corrosion and keeps things lubricated. I use the marine version for maximum protection.

I used to use an Armadillo coating, which was carnuba based and made for blued steel for my guns, but I think the tuf cloth is a little easier application and just as durable. None of my knives have a patina. About half are stainless. All of them will take the hair off my arm at the least.