Well I've just printed out my lease, my July utilities bill, my phone/broadband bill and my last year ATO notice of assessment to demonstrate I ordinarily reside overseas. I need to return home to Singapore within the next week (to avoid creating tax liabilities for the company, although probably need to get home after 4 months). Currently booked to leave on Saturday morning out of MEL.
FWIW, it's also taking some time to read the laws, about getting to the airport (want to be there by 6:30am) or whether I can actually book some accommodation in MEL or have to rent a vehicle and leave by about 4-4:30am to get there. My partner has been on lockdown with his mother, which is further than 5km from airport, and not even sure she can drop him off, although COVID risk is lower than taking an Uber or Taxi.