Here's a recent sketchbook page that I drew at Costco (as per David Colman's advice). It really is a great place to capture a wide variety of characters, and the customers are so overwhelmed by the Costco shopping experience that they won't even notice your stare.

These drawings will also be a part of my first published sketchbook, due out just in time for the San Diego Comic Con this year. I'll be posting more images from that sketchbook, as well as information on how to get your hands on one very soon.