I picked up one of these BushcraftUSA Sunforger canvas tarps awhile back, for $158 and man oh man to I like it. Well made 100% made in the USA!
Anyway I see they are clearancing them out at $130, they also have a 5x7 for $48!
Thought I would share.
http://www.bushcraftoutfitters.com/BCUSA-Canvas-Tarp-10x10-tarp-10x10-canvas.htm
Here it is set up as an awning
(http://i62.photobucket.com/albums/h103/kkustoms/DSC02266.jpg)
(http://i62.photobucket.com/albums/h103/kkustoms/DSC02267.jpg)
Here it is with the 5x7 as a baker of sorts
(http://i62.photobucket.com/albums/h103/kkustoms/1336001530.jpg)
(http://i62.photobucket.com/albums/h103/kkustoms/1336001345.jpg)
(http://i62.photobucket.com/albums/h103/kkustoms/DSC01989.jpg)