I was going to wait until I'd finished the entire month to post, but then I finished all the pages in the sketchbook I was using, and with changing sketchbook paper, I'm changing subject matter and media as well. (Still ink, but moving from inking with a brush to using micron pens.)
For more information about The Inktober Initiative, see the creator's explanation here: http://mrjakeparker.com/inktober/