Chemist Warehouse are now selling a Covid Self Test 5 Pack for just $49.99 and the price includes free shipping. It's currently available for online order with stock at selected pharmacies. This is a fairly good price given some other tests are selling for over $20 per test.
https://www.chemistwarehouse.com.au/buy/114087/rightsign-covid-19-antigen-test-(nasal-swab)-self-test-5-pack-(not-for-sale-in-wa)
RightSign COVID 19 Antigen Tests Nasal Swab Self Tests may be used to detect SARS-CoV-2 (COVID-19). For in-vitro screening only.