There is also a site called 4my3boyz. She often has scrap bags, and the scrap bags can be themed or not. She sells it by the weight and the pieces you get are a variety of sizes. I love getting her Food scrap bags because I make Aprons and i like embellishing them. Before I moved up to Oregon I was a long way from a big town, but I bought a lot on line, some sites even have free shipping if you buy more than a certain amount.
I am cutting 1.5 and 2.5 scraps now, My Mom is still in the hospital, and I can cut in the waiting room. I just bring a big ol' bag of scraps and a baggie, or a bunch of baggies and cut cut cut... then I am done in no time!