Tugging the front line never seems to work for me, kite just bounces back up. I put in anchor into the beach, sit the kite at the edge of the window, fully depower and hook into the anchor, the kite just bounces up and down totally stable at the edge, I just ran and flip it onto its edge then. For launching the same, hook into the anchor, site the kite on its tip at the edge of the window, then go back to the bar and done.
Demonstration - http://uk.youtube.com/watch?v=NSaEYB1dI4c&feature=related
Although I don't think I'd be comfortable using sandbags or a car.