We don't really have coupons in Australia. Not to the extent of America anyway. They're pretty rare because supermarkets usually just put things on sale themselves if that makes sense?
I've watched Extreme Couponing.. and LOVED IT! It's amazing how they can get like $500 for like, $2.50 or sometimes the supermarket has to pay them which is absolutely crazy but it obviously has it's downside because half of the people on there are like hoarders which is a bit sad and they are clearing out the shelf of things that other people may actually need and they might not be able to afford anything else without that coupon. It has both it's upside and downside. Luckily extreme couponer's are rare?