The other day at the airport, I saw a man with laptop case on rollers, but it also had a retractable strap. It had the normal handle that roller bags had, but the grip was smaller, so that when it was collapsed it didn't get in the way. But it also had a retractable shoulder strap. He pressed a button and the strap retracted, or pulled on it and it pulled back out! I totally need one. I wish I had asked him who makes it. Does anyone know?