You can make some terrific savings at the Grocery Club. We like to go there after our usual visit to Rocklea Markets. The products vary but we have picked up two kilos of chicken for $6, plus varying cuts, casserole bases and sauces for just $1. Anything we can't get from here or the market we just pick up from the supermarket afterwards. Some items are out of date but are usually just surplus stock and we have never had any problems.
You need to keep an open mind, and dig around the freezers, but the gems are there more often than not.
Hope this helps, Peta Hood.