If it is a new pattern or a very different color combo I want to try out, I will make a test block. I store these orphan blocks in stacked pizza boxes (new!) by color combos, ex. christmas, patriotic, black/white, neutrals. I can later use these on tote bags as gifts or even a table runner. If I am happy with the block, then I cut all the fabric at once. I like to 'compartmentalize' the project so I can feel I have accomplished sections along the way. We often do better when we think of projects in sections - preparing, cutting, block making, top assembly, etc.