St John Ambulance volunteers are to pack shopping bags in local supermarkets across the country in return for donations.
The "Just ask John" fundraising campaign will run in supermarkets including Kwik Save, Iceland and Co-op stores.
The initiative is designed not only to help St John Ambulance continue its lifesaving work in local communities, but also to ease the strain on thousands of Christmas shoppers and cashiers, by making the journey through the checkout faster and easier.
The first-aid charity will be calling on unpaid volunteers, who pay for their own uniforms, to run the fundraising appeal during the run up to Christmas.
The charity has more than 45,000 volunteers who in 2001 provided over four million hours of support to the community.
The money from the campaign will go towards medical equipment, new ambulances as well as funding its network of care services.