I purchase Fruit & Vegies at a Greengrocer and they are far cheaper than Coles and Woolies. They also have a meat section which is run by a wholesale butcher and again they are cheaper than the supermarkets.
When someone goes shopping at 10pm, what do they expect to pay?
I have 2 email addresses one for important stuff like family and the other for junk. When I get asked for my email, I give the the junk one. It gets emptied every week.
I only buy my usual groceries and save all my Flybuy points for purchases at Christmas time. I have been doing this for years. It has saved me thousands.