This sounds daft, but it is a very true experience as I become a "happier" and "greener" shopper, by not only not using the dreadful plastic bag and, not even using the supplied and branded by the supermarket "greener bag" things.
The solution is simple.
There was a free bag with "Cosmopolitan", a free one with "She", a free one with "Red"..(and one other I forget..)
Ok, I got some reading material as well!(hmmm, thats debateable..), but MY WORD!, do I splendid walking around with my trendy shopping bags or what??