Check out Bonnie Hunter on www.quiltville.com.
She doesn't buy much fabric as she goes to the thrift stores and buys 100 per cent cotton clothing, especially men's cotton shirts. She will tell you all about it. She also is a master at scrappy quilting. She has a "Scrap User's System" that she talks about. A great site, very informative.
Check it out!
Hugs, Anne in AZ