One thing I am doing that will make it easy to assemble is I have big zip lock bags labeled for each "section" of the butterfly. Such as 1R (right) 1L (left) etc., as shown in the direction booklet and as I complete blocks that will go into each of the many sections I am adding them to the appropriate bag labeled with the section the block belongs to. That way when I am done with all the blocks and ready to assemble the quilt top I will have all the pieces to every section already sorted out in the bags.