Like dgman, I don't use any actual sandpaper on finish. I go over it with regular copier paper. It takes the rough off without worrying about sanding through.
I'm guessing I ordered them from either the Scroller or Wooden Teddy Bear Catalogs. They both are dated 2007. I've had them a long time, and finally decided to cut them.
I mostly follow along with what Scrappile said. However, I don't really have a preference for right or left, it all depends on the pattern, and what makes sense and how I'm feeling when I'm cutting.