Plastic bag usage down 78% since introduction of 5p charge, says Tesco | Environment | The Guardian
http://www.theguardian.com/environment/ ... says-tesco

Yeah, I think that falls under 'lies, damn lies and statistics' if over here is anything to go by. And those are remarkably high figures.

Meanwhile, you can buy an entire roll of bags in the poundshop. You know, to use as bin liners or re-use like most people did anyway?