I love to buy fabrics too. When I see something that is just 'really pretty', or if it's purple or yellow (which are really hard colors to find around here), I like to buy! I really don't need any more material right now, except for backing fabrics when I get a quilt made that needs one. I try to just avoid going to the fabric store. I know that if I do, I'm going to buy something. I wish you alot of luck with your plan. I really hope that it works for you.
Marilyn