With this job and modern technology we have a great opportunity to learn and listen to an endless amount of things with ease and practicality that years ago they would never have been able to do. If we have so many working hours in the day I wonder if it was possible to become an expert or very knowledgable in something just by using your ears while cleaning windows. I have listened to the whole of the Lord of the rings and the Hobbit audio books, learned some Spanish and now listening to some talks on Ted. It's a great way to pass the time and learn something new or just listen to something interesting. Just wondering if anyone else does this and if so what do you listen to?