I put the fabric received with the envelope in a small baggie. I also annotate on the envelope their color choices. When I make the block, I also write the name of the block. I did boomerang 7 and for me this is much easier to pull fabric/scraps by being able to see the fabric without having to keep opening envelopes. I have three grown up blocks made and about 6 or 7 to go. I have received two so far. Having fun!!!