For now, the Mark Bradford exhibition at SFMoMA among other things got me thinking more about surfaces and materials. He collected fragments of his urban environment (South Central LA) and spend a decade reassembling them into monumental canvases that deserve to be in a museum. And there they are.
For the purposes of large quantities of materials and surfaces, I like to start at stores that sell hardware, fabric, and junk. After some test pieces, I began my first new surface by adhering some deliciously textured burlap to plywood, flattening, and working the nooks and crannies with acrylic medium and sandpaper.