I fold my fabric selvage to selvage adjusting it left to right to get the grain as straight as possible, then fold in half again bringing the lengthwise fold down to the selvage, roll the length around an omnigrid ruler, pull the ruler out then stack my fabrics by color on shelves. Folding the fabric this way allows me to roll out a portion of the fabric and rotary cut off the amount I need with as little handling of the fabric as possible.