Do you prefer writing with a pen or with a pencil? Do you use a pen in certain situations and a pencil in others? Do you have a preference at all?
For most purposes, I prefer a pen. For writing or sketching in my journal or even just jotting down a quick note to myself, a pen is the tool of choice. Pencils do, of course, have their place - for crossword puzzles, for solving math problems, for taking notes in class. While pens have the glamour of permanence, pencils offer writers the ability to erase and make corrections.
Owning few non-mechanical pencils myself, I went searching through my mother's pencil cup and came up with a handful of stubs, many of which had clearly seen better days.
Oddly, I have never seen her using one of these pencils, since she nearly always uses a ballpoint pen. I suspect she found them at the place where she works and brought them home, in hopes that they might someday prove useful. I love looking at these old pencils, wondering about their past owners. They have a certain personality and romance about them that my own shiny new pens sadly lack.