I always buy extra yardage. I usually buy fabric that I love w/o a specific project in mind, then when I have a project start w/ the loved fabric and add to it the other fabric, and that fabric is purchased w/ a project in mind. I am way to excited to start the project to sit and draw layout designs or fussy cut pieces, that would cause me to have even more ufo's then I already do! lol lol lol I cut and layout for best use of fabric w/o an overly big amount of waste, but I HATE seam ripping so I err on the side of a little more waste then being a hair to small and have to rip it out for another piece.