Avoid flying early morning and late afternoon on the eastern seaboard routes. Because, these flights are usually heavily booked by business people travelling between the capital cities.
Need extra leg room? Ask to be seated in a row that serves the exit doors as these rows seem to have more room.
When checking in and getting seat allocation, ask if your seat is in the first row immediately adjacent one of the large central video screens. You may wish to ask for a different location, especially if on a long international flight.
A departure tax of A$30 per adult is payable when leaving Australia.