You also need to do basic IT stuff like buy applications, install them, license them and turn features on and off.

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Sure, you need to know that you have enough money to survive, or more than survive, week to week, but you also need to know what you are going to do with all of the spare time you have every day, week and month.

BBC: Fergus Muirhead

A9 will also centrally store your bookmarks, previous searches and browse history, which is useful as that means you can access them from other computers, but also means that you need to be careful that you do not unwittingly leave important personal information about yourself on other people's computers.

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You should also consider specifically how much driving you plan to do in deep snow before deciding whether you need all-wheel drive.

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"You need to be able to write and also do the technical stuff, " says Mr Petherick.

BBC: NEWS | Technology | Meet the digital biographer

And you know Vince Cable has also been talking about the need to do that - to kind of really, to really make sure that we foster confidence where we can even though, you're right, the wider context is really tough.

BBC: Transcript of Nick Clegg interview

And though you do need some understanding, you also need to relax.

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