I really hate it when shops refuse to give you a carrier bag because they are having a "trial period" of getting people to bring their own. Oh but you can buy a great big "bag for life" thingy for X amount of money...
Well OK, I'll have a trial period of not using your bloody shop then!!
A lot of shopping is done on impulse, not planned. Is everyone supposed to carry round plastic bags in their pocket, just in case? Bollocks!
Its just spin and profiteering. There are carrier bags which are bio-degradable... perhaps supermarkets should be investing money into finding ways of making them cheaper instead of telling me I cant have a bag.
The only people who I have seen actually re-using bags are the same people who drive to the shops in their, er, cars, instead of walking or getting a bus.....