Clearly stated sizing and fabric requirements for blocks is a must for me. I can figure out how many I need for any size if I know what the basic unit is, though full instructions for all sizes is very nice as well. Clear photos of both the completed project and any complex/non standard piecing and a few colorways is always a bonus. And you can add me to the list of those who will not pay the same for a pdf download as a full color printed pattern - my paper, my ink, my printer and no production costs for the seller mean I should get a substantial discount.