I agree with many of the comments you've already gotten. I'm not a big fan of pre-cuts. I like to pre-wash my fabric and as someone else mentioned, pre-cuts are not washer friendly. They are also generally, but not always, more expensive. I did, however, buy a charm pack to add to yardage for a quilt a bit ago. The pattern called for varied 5 inch squares cut however. Since I needed a variety it was worth it to me in that instance plus cut down on doing alot of pre-cutting.