London's transport system seems to be holding up so far during the Olympics. But bosses at TfL have told the BBC they do not think the Tube could have coped if they had all those passengers as well as commuters.

Part of this success then may be because some people have taken the warnings of congestion seriously and decided to work from home.

Science reporter Rebecca Morelle investigates whether time spent working away from the office is an irritation or a pleasant surprise.

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