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Man in field
4. ...but still have a backup plan
Earlier this year, the Olympic organisers were warning of internet outages arising from the huge number of people going online during the Games — to watch events, for example. While these warnings may have been downplayed, with the huge numbers working from home it's wise to assume that at some point you may find your broadband failing when the entire street starts streaming Olympic video.
So make sure you have some work that doesn't rely on a network connection to keep you busy — and the boss happy — until you get back online.