expired OMO 6kg Washing Powder (Front & Top Loader) - $19.95 [+ Shipping/Pickup] @ Harvey Norman
This was posted 9 months 5 days ago, and might be an out-dated deal
Actually saw it in a catalogue a few days ago that I got in the mail, took a photo and intended to post it up but never got around to doing it until now!
You can click on washing powders on the side to view just the two Omos, otherwise it should be somewhere on the first page of washing machines.
This works out to be $3.325/kg. For reference it was $7.96 (half price) for 1.5kg at Coles about two weeks back ($5.31/kg). This is the "Made in New Zealand" edition (can be seen in the Specs tab)
Tried a couple of postcodes and delivery comes out to $5.95, otherwise it seems you can pick it up in store!
The website states the deal ends on August 26th, so just under a week to go!