Working from home is one thing, working from anywhere takes some special gear, know-how, and patience. Don’t open your mobile bill to an April Fool’s Joke: roaming and mobile data costs can be significant working on the road. Not to mention losing reception in-between places, and smart phone battery life… First, make sure you are closing down all your apps, every time, because they use data and power even running in the background. A great way to save money and energy, and remove reliance on four-bar service, is to Navigate off-line. There are excellent free global GPS navigating apps like Navmii, and countless city maps for Metro and transit systems. There are also outdoor recreation and topo maps. Plan ahead to install, download, and update maps when you have a good Wi-Fi signal, before you head out.