But "think" must be "do".
The Inktober challenge is to make an ink drawing each day of October, posting each one (wherever) with the hashtag Inktober.
You'll find details of Inktober over at Jake Parker's Inktober page ... including its official prompt list of kick-start themes for a drawing.
Today's prompt is "SWIFT" - which I am not - as you can see.
Tomorrow's (Oct 2nd) is "DIVIDED" which I frequently am.
Now let me reach for that pen and paper ... Did he say "Swift"?