Squishing into a cramped economy seat on an overcrowded aircraft can be borderline excruciating. Although you can’t make your seat cushion softer or magically grant yourself more legroom, you can invest in some cheap(ish) gear that will make your in-flight experience much more bearable (and, dare we say, even comfortable).Here are seven inexpensive carry-on items that can help keep you well rested, entertained, and cozy from takeoff to landing.