As the owner and only employee of Arnie’s Plumbing and Sewer Cleaning in New Ulm, Minn., Arnie Schweiss gets up at 3 a.m. every day, routinely works 10-hour days, often including weekends. He embraces new technology and recently purchased a $40,000 trailer jetter.None of that is very unusual for a busy sole proprietor except that Schweiss is 87 years old. “I love the work,” Schweiss states simply. “If I got up and ate breakfast, then sat in a chair and slept until dinner, well, I can’t live that way, and I won’t live that way. I’d rather curl up in
