Trying to fill up pages in my color sketchbooks, I've come up with* a couple of processes that amuse me no end. One is painting on patterned paper and the other is making white line drawings on a colored ground. I start at one point on the page and then I let my hand follow my eye as it forages for edges, hovers over ellipses, careens around hairpin turns. I have some sense of what the total page composition will be, based on the shapes before me, but other than that I just wander, with very little idea of what a particular concatenation of lines will look like at the end. Kind of thrilling in its way.
*not that these things had never been done , but I'd never done them.