The Hottest Home Improvement in 2011

That may surprise some of Mr. Hall's neighbors, who think that Dallas is often steamy enough. Mr. Hall says his sauna provides not only relaxation, but also a certain cachet with friends and colleagues. "We'll have clients over and instead of going some place for happy hour, we'll have a sauna, a couple beers," he says. "People think it's weird at first" but then are usually won over, he says.