Sketching while waiting

As I am the kind of person who always likes to be on time, I tend to be early for appointments. that can be infuriating to some, but, me, that's the only way I can actually relax. What better way to use the dead time than sketching (from the car or the footpath)? Two pens and a small sketchbook is all that's needed - in this case, a fine pen (Micron Pigma) and a grey bold PITT pen. The dark darks were achieved by adding several layers of the grey PITT pen.

It would be an interesting project to map all the locations I've been to since I started sketching - Ah, there's another potential project!