The Steering Wheel laptop desk is a must have item! Please read the customer reviews/ http://www.amazon.com/dp/B000IZGIA8/ref=cm_sw_su_dp
Actually if all my travel was by car, rather than a combo with air, I would buy it. In a rest area that would be perfect.
http://www.amazon.com/Mountain-Mens-Three-Short-Sleeve/dp/B002HJ377A/ref=cm_cmu_pg__header I wear my 3 wolf tshirt while using my laptop steering wheel desk. The THREE WOLF POWER attracts the ladies, and the desk attracts the productivity. I can knock out 5 pregnancies and 5 TPS reports by lunch, while never needing to leave the walmart parking lot.