I've always been a fan of marginalia. Likewise, I've been known to use a post-it or two (or five) from time to time. Why? Sometimes it's just easier to communicate when you keep your visual options open.
Meta lesson learned This is not the post I originally intended to write about the rOpenSci Unconf (and, I promise, this isn’t just a lame attempt to take the Magritte joke a step further). Rather, what follows is wisdom gleaned both at the unconf, and in in my (failed) attempts to write the aforementioned original post capturing my unconf experience.1 HUGOMORE42 In our two days of un-conferring, there were 20 packages written by ~70 participants.