I think the biggest quilting mistake I made years ago was to buy fabric without a plan. Now I have tons of fabric I dont know how to use it or there isnt enough or too much for a project that leaves an odd amount leftover. And now I cant justify buying any new stuff because of the loads of stuff purchased previously. Like clothing fabric goes out of style. I would love to buy the new batiks but just resist. Fabric stashes can become very burdensome.