Coles - Carapelli 3 Litre Olive Oils $15.99
Extra Virgin (cold pressed) or Mild.
This is the only way I buy my olive oil now - in bulk.
This deal works out to approx. $2.65 for the normal 500ml I used to buy. But those are any where from $4 upwards each and for good quality olive oil closer to $6 a bottle.