Just had an email from Ocado who I use to get my bigger shopping delivery's that they will be charging me 5p per carrier bag inline with all supermarkets.
However the good news is that they will refund me 5p for every bag I give back to them too so hopefully it will mean that it does not cost me any more.
But the even better news is that they will also give me 5p for every carrier bag from another shop too. So I am hoping to dig out all those hiding around my house and hand those it too.