In fact, there are multiple ways to save on weekly groceries:

A) Check the weekly catalogs that delivered to your normal mailbox, then decide from where you can get which items, i.e. Coles or Woolworths

B) Check different websites for different supermarkets

C) Use their apps

D) Go to shopping around 7:30 PM, you will find many items labeled with discount rates, as it is near expiry or end of the day

E) You can buy in bulk from Sunday markets in different suburbs, but this will need to share with another family or more as you will have to buy in bulk