That's when I came up with DUCT CANVAS. Like the duck, but with a T and made from a three dollar roll of tape and recycled art materials.
Naturally, I had several large sketch pads lying around. These pads (12x18 inches at the smallest) almost always are backed by a surprisingly sturdy cardboard sheet. I had already been encouraged to use this cardboard for pastels and the like, but the industrial subject matter one of my professors was focusing on led me to
Layer the cardboard with even strips of duct tape, starting at the bottom with about a half an inch overhang which I folded under the cardboard for a more seamless look.
The art I did on these things was almost entirely in India ink and white acrylic. My skills and passion have waned as I moved on to greener pastures, but I still hope to try this canvas again someday.
Total prep time: about ten minutes.