The bare wall dilemma is slowly becoming less of one. I made my own chevron canvases, albeit not as neatly as Jess's.
I won't bother with a tutorial since this isn't my invention, but I will share one tip that Matt thought of. In order to cut a zillion segments of painters tape I stuck strips of it to my cutting mat and used a little Fiskars rotary cutter and my ruler to cut two inch pieces. Visit make under my life for detailed instructions.