Definitely smoke signals. Can be crafted out of just about anything you have that’s green, a little bit of flame, and one’s cloak. No better choice if you need to send a message across vast distances. Quill and ink was a close second though, very transportable. I’ve got a couple make of hawk feathers from my travels.
Not all who wander are lost; some are just looking for their arrows.
When it comes to writing, definitely typing on the computer for bouncing around to different sections of a story and quicker than a pen or pencil. But on the editing side, a red pen is my go to.