This week's gadget is the Meyoung Airplane Foot Rest Hammock. On an airplane, it can hang from the snack table's arms to provide a hammock-like foot rest. And unlike some other travel gadgets, it doesn't make you look dorky, because probably no one will notice. It weighs only 3 oz and folds down to about 8" x 3" x 2" inch. The company says it will relax your feet and reduce pressure on your back. $13.99 on Amazon here.