Few things are worse than scouring a strange city in search of wi-fi. (Unless it's sitting in a Starbucks in that strange city ordering latte after latte in order to suck up the free wireless.) No longer. A service called Boingo gives business travelers access to more than 125,000 hot spots across the globe, including restaurants, cafés, hotels — many Marriott and Sheraton locations among them — and most American airports. No more paying per hour, and no more searching for Internet access. On the downside, no more using that old "off the grid" excuse.