W+K planner Sophie Dollar today presented our project Off-On at the M&S Sustainability Conference at the Queen Elizabeth Conference Centre in Westminster.

Off-On's key objective is to encourage employees to do more good by behaving in a more environmentally responsible way.

Today's annual conference is part of M&S's commitment to corporate social responsibility and is part of 'Plan A' – an initiative the company launched in 2007 which has set out 180 commitments to achieve by 2015.  M&S's ultimate goal is to become the world's most sustainable, major retailer.

Sophie presented Off-On as part of the afternoon session: 'How to engage your employees' – and continued to spread the word that a democratic, simple and accessible idea is the key to sustainable behaviour change.

Judging by the string of delegates queuing to congratulate her following her slot – people are certainly listening!