Having been asked to pick up some washing up liquid by his girlfriend, he discovered that, like most supermarkets, Aldi stocks various colours of the stuff. It was then he came up with the idea ...

Shoppers across the UK have been issued a warning over washing up liquid. This year, all shoppers who buy washing up liquid are being encouraged to make a change to benefit the environment.

A warning has been issued to Tesco, Aldi, Asda, Morrisons and Sainsbury's shoppers over washing up liquid and other household cleaning products sold at supermarkets. Environmental campaigners say ...