1 Pay the London congestion charge (£8 every weekday) for slightly under 3.5 million years. Or, pay a year’s Congestion Charge for slightly fewer than 3.5 million Londoners.

2 Continue the Star Wars movies up to Episode CXVIII. (The Retirement of the Jedi. Or possibly, The Empire Puts Out its Back.) 3 Buy an iPod nano (£140 each) for every person in the UK. Strictly speaking, that would cost around £8.5 billion, but we’re assuming that he would get a small discount for buying bulk.

4 Employ Kate Moss in 9,733 new modelling contracts, at £750,000 each. Alternatively, get Linda Evangelista (at $10,000 a pop) out of bed every day for the next 3,576 years.

5 Give the Liberal Democrats a donation 3,041 times bigger than the largest donation they have ever previously received (£2.4 million, from the financier Michael Brown). And then, possibly, have to take it back.

6 For a single year, double the GDP of every one of the 24 poorest countries in the world.

7 Buy every other football club in Britain, and make them all as good as Chelsea. Afford David Beckham (he cost Real Madrid £25 million) 292 times over.

8 Write, produce and record a pop single, and keep it at the top of the charts (20,000 copies a week should do it) for almost nine millennia, until the year 10890.

9 Build a thousand Millennium Domes, at just under £750 million each.

10 Buy 12,166,666,666 copies of The Times.