I love the true stack n whack by Bethany Reynolds. I look for a print that has several colors then cut as she instructs. It is always a surprise how each block looks when it emerges. Someone suggested to use a fabric that is really garrish and that you would never think of using for anything. It is a fun process. Since you only use 1/2 of the width, I usually use the other half for borders. This eliminates wasting half of the fabric.