Often when I work on a model or a statistic problem in Emacs I make a note that I have to correct or add something to the code whenever I have the time for it. I used to work with Outlook or with a piece of paper, but both have disadvantages. Writing on a piece of paper or with outlook disrupts my work flow and I have to write down to which part of my work the note relates. Emacs can be a great tool for keeping track of notes or todo’s and links them directly to the file you