On Mark Kennedy´s blog you can read a very helpful advice about being a beter artist to carry your sketchbook wherever you go.
So let´s go and read his Post!!! http://sevencamels.blogspot.com/
He motivated me to go in a café and draw some people. Well i´m back and that´s my work i did today. Not very much because the weather became cold in the evening here in Germany. But it was very fun. Recommended!!!