2. Sign up for a Mileage Plus VISA card.
3. Sign up for Ameniti [a worthless travel club] for $500 and make sure to use your United Visa card.
4. Wait twelve weeks. At this point, you should have 70,500 United miles in your account - enough for a free ticket to Australia [or Asia, or New Zealand, or pretty much anywhere in the world save for Africa, the Middle East, or Central Asia].