Here is what I do with a bunch of totally unrelated materials with totally unrelated patterns. I pick up on piece then the next piece has to have one color in it from the first piece. I continue this. This way your batiks won't be out of place as the eye and brain will see it connected. Also, using this method with solids I will end the deliberate patterning with a solid and then start color matching again with a new color of solid, which means two solids together. I organize by stacking and then just sew how many across for my row and continue through the stack for the next row. It is that "controlled scrap" mentioned above, I guess.