A long time ago I made a geologic timeline as a (vector) brush in Illustrator, with .ai and .eps files free for anyone to use. The only thing I ask is that if you use it, let me see the result. Making the timeline was incredibly time-consuming and ludicrously fiddly. So, a while ago I got a message on Twitter from scientific journalist @ from the French magazine Science & Vie (Hors Série) asking if they could use it. Of course! I cannot say how much I appreciate people asking and letting me know. My French is pretty non-existent, but I get the general idea. Going over and beyond the call of duty, she snailmailed me two copies of the magazine. I am childishly delighted with seeing it printed on paper… And I also deeply appreciate that I have been credited, using my Twitter-handle.