Be prepared to go offline
The internet in Australia is typically sluggish, and you may also wind up spending a hefty sum for it. If you reside in London, you will know that the internet is available almost everywhere, but this is not the case while traveling across the world. If you wish to stay connected, you'll need to purchase a hotspot. When you do, you can carry it with you everywhere you go and you won't have to worry about roaming costs as much, so keep that in mind the next time you travel.
The internet in some places of Australia can be slow and expensive, to the point that it would be a rude awakening for many of us who are accustomed to simple online access. If you really must stay connected, the best and cheapest solution is to get a portable hotspot. They are a worthwhile purchase not just because they keep you connected when you are on the go, but also because some may double as a portable charger for your phone. Two birds with one stone in terms of technology.