I started cleaning and sanding the wooden handle of one and then cleaned the blade on sand paper. I ended up putting Renaissance wax on both the blade and the handle.
It felt so good after I did it, I picked up another one and did the same thing. Well, might as well do all of them. By the time I got through, I have ten mud and putty
knives. I had no idea I had so many. It's almost embarrassing.
I bet I'm the only woodworker that's done this.