MileHighKiwi:
Not sure what you do with your plastic bags, but mine go in the wheelie bin after they have been filled with rubbish, nappies etc...
The opposition to the ban, from me personally, is that is not going to achieve anything. The only benefits will be to the supermarkets who will now sell you a bag that was previously free.
And you'd be totally wrong. Australia's experience is that while plastic bag use is decreased by 80%(!), supermarkets actually experience a drop in impulse sales that results in shrunken profit margins as people will no longer just buy a bunch of stuff since "oh, I don't have anything to carry this home".
So no, the supermarkets will not benefit.