What's more, if you saw the first part of this upgrade diary, then you'll know I was aiming for a trickier-than-average setup, with Windows 8 Pro running on a brand new and untouched SSD, alongside Windows 7 Ultimate running in dual-boot mode on my old HDD.

ENGADGET: Windows 8 upgrade diary: a defiantly successful installation

You will find that, even as you reach for your diary for the next new moon, the sun is surely shining.

ECONOMIST: How the sun and the moon move markets

You call your guide who asks questions, tells you to keep a food diary for a week, and schedules an appointment with an allergist for the next week.

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"If you ask for the prime minister's diary, when Rupert Murdoch visits Number 10, if he goes downstairs it's published but if he has a meeting in the flat, it's considered a private meeting, " he told BBC News.

BBC: Nothing personal: Politicians and their media friends

Keep a spending diary for a month, and cut back on things that don't make you happy.

BBC: NEWS | UK | Magazine | Money worries in your 20s? There may be a silver lining

But the diary, which describes Afghanistan before the COIN doctrine was favoured, shows that you cannot rely on CT alone for long.

ECONOMIST: Afghanistan