From Wandsworth to Camden, hundreds of people have set to work in their local communities to mark Make A Difference Day.
Many have been inspired by the example set by London's 70-thousand Olympic Gamesmakers.
Piers Hopkirk has the story.
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Model Rosie Nelson writes for ITV News, revealing why she is calling for MPs to pass a new law protecting models from becoming too skinny.
Amid calls for new laws to regulate the size of models, we look at how the face of fashion has changed over the past 60 years.
Amid calls for new laws to prevent models getting too thin, ITV News speaks to three women in the fashion industry to get their views.