by Michael Duran @

THE INTERNET IS a series of tubes, but it’s useless when you’re stuck in one. Connectivity sucks on the subway, it’s a pain on a plane, and even if you take the bus, it’s smart to keep data usage in check. Whether you get to work by land, sea, or air, these apps have offline skills to help you work—and decompress—while you’re off the grid. Just don’t use them while you’re driving.