I suppose this question may sound a little cynical, but I assure you I'm only asking it to satiate my curiosity!
While in Asda at the weekend I was offered their plastic "bags for life" at 5p each, as it would be kinder to the environment than using standard carrier bags.
I know that you get a free replacement when the bag breaks, but at 5p each are the supermarkets making large amounts of money out of these bags? Or are they selling them on a purely environmental basis; to care for our planet's future rather than for just their own?
It got me to wondering how much these bags cost to make/ship etc - and also whether the increased production (ie the strong bags surely go through more manufacturing processes) negates any environmental benefits they may claim to have.
For the record, I tend to use material shopping bags - the sort you get free with Marie Claire or Glamour magazine.
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