I wish I had done that with some of the UFOs I'm locating now.
I also with I had included everything - book, thread, all fabrics needed - in the pack. And made notes on which ruler I used for cutting, which machine I was using with the settings used, etc. And kept each project in a separate container. Labelled.
Learn and live!
At this point, I am thinking that those that buy for the project at hand (even at full price) , and finish it before moving on the next project - have probably spent way less money on "quilting" than I have.
So - sometimes less is better!