Sainsbury's will give seven million free re-usable shopping bags to customers on Friday, April 27.
All disposable carrier bags will be removed from the checkouts during the day, and Bags for Life, made entirely from recycled materials, will be given out instead.
The supermarket chain wants people to keep the bags, which usually cost 10p, and reuse them on future shopping trips.
It will be the first of the company's Make the Difference days, aimed at encouraging positive action across a range of environmental and ethical issues.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules hereComments are closed on this article