Today at a meeting, I saw the CEO and COO of my company with nice pens (Montblancs) inserted in the plackets of their buttondown shirts between the 2nd and 3rd top buttons. I've seen this before, including in dress shirts with the pens discretely covered by neckties. I was wondering what fellow SF members think about this. Does it look too casual? Or is it an elegant solution of wear to put pens when your shirt has no chest pocket?