I picked up these Mat Stacks at my local Big W. You can see from the front that they are filled with gorgeous glittery papers. I think these are a great resource for your backgrounds especially with the current styles of layouts these will work perfectly. If current styles dictated a completely covered in one large 12 x 12 patterned paper then this wouldn't work.
They do sell these in 12 x 12 stacks for $20.93 each but I felt that this was a better option as each of these only cost $8.95 and you get four sheets of each pattern so you could almost cover a 12 x 12 page. The bit I like is I bought three stacks for only $4 more than I would of paid for one 12 x 12 pack.
I can't wait tohave sometime to scrapbook with these.... yummm!