I was sanding the imperfections out of some projects I did today. I don't have any mini files so my wife asked me if her emory board she uses on her nails would work?
I gave it a try and wow it worked great. One side was course and one was fine.
I trimmed one end very narrow with scissors to get in tight spots and it worked great.
Now I realize many of you already knew this and used it, but hey, 57 and still learning!!