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Buy others' unused, unwanted Groupons with a new iPhone app.

Residents offering free and paid space have become a viable alternative for the packed conference.

They helm the kitchens at some of the finest restaurants in the world and have a gaggle of Michelin stars among them. But what do chefs make when they come home late, tired, and starving, and they simply want to get a meal on the table in 10 minutes or less? Hint: Foam is not involved.