Four years ago, Kent Couch made headlines by floating through the clouds in a lawn chair hoisted by party balloons from Oregon to Idaho. He's going to fly again, this time with a buddy sitting on a second lawn chair at his side. They are planning to take off July 14 from the parking lot of Couch's gas station and convenience store in Bend, Ore., the way he did in 2008 when he floated 235 miles to an Idaho farm field..."We can't hit above 18,000 feet (because of federal flight restrictions), but we can make a good run at, I...