Nice article. I hope people don't get the notion that simple living is some sort of arduous sacrifice requiring you to live like a miser. I preach "selective spending". I enjoy collecting experiences (like Hal in the article), rather than "stuff" and material pocessions. His message of sharing yet being practical is perfect.
Here's his company. He's spot on with his travel philosophy too. Most people only travel once every few years and spend thousands on hotels and packages for a "once in a lifetime trip". By just renting a room in a hostel or guest house you can stretch your money much longer, travel more frequently, and have a more intimate experience of getting to know the locals in your neigbhorhood, and becoming a "temporary local"