After the interwebz gremlins stole my post yesterday, here is a quick summary for everyone.
GW UK now charging 10p for a carrier bag (plastic bag for transporting goods from store to home for our transatlantic cousins). We are unclear if non-Uk stores are doing likewise. Some people felt that GW becoming more environmentally responsible was a good thing, others were outraged at the thought. 'Bags for life' are a waste of money and a con, re-using your old bags or taking in a proper one is the best option. There was some off topic stuff about the Yanks stealing Native American magic and perhaps some other stuff I forgot, but the key point is be prepared to pay for bags in all UK stores.