I just received a flyer in the mail today with a sale that ends the end of this month. Those of you who might need backgrounds the site is www.knowledgebackgrounds.com. This is not a recommendation - just passing on a sale. Canvas and more....
25% off hand painted.

I am going through many of my muslins and if anyone wants gently used backgrounds - just let me know and I will e-mail you colors and scenics I no long will use.

For the non wrinkle look, I have purchased 4x8 sheets of foam insulation board and painted on those. I have even papered a scenic mural on some.
I do love canvas but I admit it is more difficult to carry to locations.