Put my obi on first. Take the back ties of my hakama, pass them inside my obi going from above to below, tie them in a knot at the front below the obi. Take the front ties and pass them inside the obi and the back ties from the top, slightly tuck the front edge of the hakama insde the obi too. Pass them round the front, then wrap around the back and bring them back to the front. Tie the ends in a reef knot at the front, ensuring that the knot incorporates all of the passing ties. There should be enough loose ends to form a "cheap" bow.
Take one end and loop it horizontally, take the other end and wrap vertically around the middle of the horizontal loop until you have a neat looking cross.
Sounds a lot more complicated written down than it actually is.