I found this article to be delightful; though I'll admit I don't quite have quite as much passion for laundry as the author. Last time my travel partner broke out the detergent in the bathroom sink, I sat there and watched lazily while my dirty laundry remained crumpled at the bottom of my suitcase. However, I can completely understand the sentiment that "the presence of hanging laundry, just about anywhere in the world, signals that you've left the manicured tourist zone and entered 'real life'."
I also love, "You know you're really traveling when you run out of underwear." Now that one I relate to completely!