, originally uploaded by JamesB.

I’m playing around with omnigraffle, gliffy etc.  And they’re great but you can’t beat drawing freehand initially: it’s quicker, you can get far more done and it makes me think when I draw.  Using templates, structures etc even ones as flexible as the stencils in the above can be unproductive.  Doodle.  Here’s one my son did earlier.