After some trial and error, I found it works best for me to buy fabric for a project. I do have plenty of extra fabric around from leftover fabric from planned projects as I do tend to buy extra, just in case. And I also have a few kits waiting that I've picked up at shows or just shopping. I try to use up left overs in smaller projects like table runners, then find I need to buy a few more special fabrics to finish. I have intentions of making more scrappy quilts, but so far haven't really done that.