Thanks ladies for all of the input! I've decided that after cutting the 2 1/2" strips for my upcoming class, I'll cut one more strip in case of short widths/problems during class. If I don't use it, I'll have coordinated strips for the next project. I'll leave the rest of the FQ intact for another project, so I can get whatever shapes I need from it. And I do love going through my bins of FQ's and auditioning for the next project. Almost as much fun as buying the FQ's!
Dfrank27 - I checked out Debbie Caffrey's website, and it does sound like she is teaching what I was asking about. I had seen the idea in a book about scrap quilts, but I don't know if it was her book.
Rita - My LQS had a one-day class a couple of years ago, where you brought 20 fat quarters, layered them, and cut them all the same. Lights and darks were swapped out from one fat quarter to another, the individual shapes arranged into the block pattern, and then you sewed it all back together. I wasn't able to attend, but it was similar to a Churn Dash block.
Sue