"For pieces 1 yard or more in length, I would accordion fold (about 12" per fold) and then safety pin the edges together."
A friend who is also a quilt pattern designer, quilt teacher and works in an LQS does this with all her fabrics. She unfolds the fabric so that it is full WOF, then folds and pins both top and bottom. She uses the largest pins she can find and likes diaper pins the best. She also pins parallel to the edge of the fabric. When the fabric comes out of the washer, she hangs the pieces with a pants hanger that has clips by clipping the safety pins. When the fabric is dry, she takes out the pins, folds it and puts it away.