The websites that want you to share food
Internet technology, especially mobile, allows us to monitor our resources like never before - in theory making sharing more possible.
It is happening on both sides of the English Channel.
The website Cookening, external, wants you to turn your kitchen into a restaurant, inviting guests to take part in your meal. The start-up has almost 3,000 users, almost half of whom are in France.
The recent LeWeb conference, examined the sharing idea, which it called "Digital Hippydom" and it found that the French public and companies are particularly suited to the online, sharing economy.
Meanwhile in Britain, Crunchd , externaluses apps to encourage people to share their experience of growing their own vegetables. It then allows users to trade their produce and create an online harvest for everyone to share.
Video Journalist: Dougal Shaw
Up Next is a new series of video features for the BBC News website which examines the new developments that could affect all of our lives in the future.