Looking at old notes

We all know that we have to go over old notes that we've made over the years. I keep my old notes in a file. It's nice that I can go back and read them and perhaps get a new perspective on researching a particular ancestor. Or perhaps you made a note to go back and search a particular book or website. I don't throw away notes that have information on them that I think I might want to go back to. Save your notes.