Sketching while waiting

I believed I mentioned a while back that I carry a small pocket size sketchbook and a sepia micron pen in the glove compartment of my car so that I can sketch while waiting at various locations and/or to capture some quick idea.

Below is a set of sketches I did back on March 2009 and April 2010, most of them were created while waiting at the DMV office and a few other waiting rooms, in no particular order (hence capturing mainly their backside).