In 1972, Maureen and Tony Wheeler bought a beat-up car and drove from London "as far east as we could go." They wound up in Australia, by way of Afghanistan, India and Thailand. Their notes on how to travel on a shoestring became a book, which grew into Lonely Planet — the largest travel guide publisher in the world. PLUS in our postscript "How You Built That," an update with Melanie Colón, a frustrated renter who created an easier way to communicate with noisy neighbors, called Apt App. (Original broadcast date: May 8, 2017) Learn more about your ad choices. Visit podcastchoices.com/adchoices