Yes it is worth it ... last year the Woodland Trust's recycling programme collected around 93 million cards, and as a result it planted 22,000 new trees and saved 2,400 tonnes of carbon emissions. The Trust will have card collection boxes in branches of WH Smith, Tesco, Marks and Spencer and TK Maxx until the end of January.
Go to www.woodland-trust.org.uk for more information about its invaluable work.