As the promo clearly states, the participating retailers are The Good Guys, Supercheap Auto, Dick Smith, Appliances Online, Catch of the Day, Kogan, Zanui, House, Dell, Quiksilver, Roxy, DC Shoes, and Surfstitch.

All this promo will do is take away sales from the smaller sellers, but if you're looking to buy a big-ticket item, it's an even better deal than last Sunday as this discount is 20% and is worth up to a total of $200, which is 5% more and twice as much as last week.

It is also valid for up to 5 transactions and there is no minimum invoice value, unlike last week's $50 per sale minimum, so anything at all that you buy from these retailers will be discounted by 20%. Might be a good time to stock up on those cheaper accessories you may need.