Although it may not be as big as National Novel Writing Month, over the past five years InkTober has grown into a global event. What's InkTober, you ask? It's a challenge created in 2009 by illustrator Jake Parker to help improve inking skills and work habits -- and this year's edition starts tomorrow.
If the date sneaked up on you, don't panic: All that's required is a pen or brush and paper -- but you'll probably also need an Internet connection, and either a scanner or digital camera.
Each day throughout October, you simply make an ink drawing and upload to your blog, Facebook page, or Twitter or Instagram account, accompanied by the hashtag #inktober. (Or, as Parker suggests, you can simply pin it to your wall.)
That's it: 31 drawings in 31 days. Parker breaks down the rules, and provides a list of resources, on his website.