"A Line in the Sand" Topic

When coordinating (which includes, but is not limited to cooperating) with other players in a wargame, how often do you sketch out plans, maneuvers, or tactical diagrams?

If so, what is your medium of choice (or most frequent medium of necessity)?

As an engineer, it is ingrained in my psyche to draw a purty pichur of anything I am discussing, so I draw something out almost every time I want to initiate or change a plan.

As an engineer, also I habitually have a pen and some type of notetaking paper on me at all times (which was a useful behavioural norm when I became a military officer), so I generally use them. Occasionally I will draw something out in the air.

As a naval officer, I didn't have the opportunity to draw things out in the dirt very often. Though I do that a lot when camping.

I once ran a Striker game where the defending players took a photograph of the game table, used software (not sure what specific program, but Microsoft Paint would work) to mark hidden units and mines.

I myself have used pen and lined notebook paper to sketch the battlefield and lay out how each unit of my side was to advance through it.

We often don't think about bringing paper along but when we do we sketch out the table to make plans for the sure and certain doom of our opponents (at least in theory)