Another helpful site that looks at good deals to help you save money.

Voucher Codes, Coupons & Australian Promo Codes 2012

they help with posts such as:
Stacking Woolworths Online discounts with vouchers for a bargain. $101.74 of groceries for $40.87 | Buckscoop - The Oz Bargain Blog

also good for gamers, they often look at discount games and I know there's a few fellow gamers on here.

make sure you check the freebies:
Australian Freebies, Samples & Free Stuff - BuckScoop

and voucher codes site:
Australian Voucher Codes, Discounts and Promo Codes -

saved me some money over the years