According to focus-group studies, pay-day customers are most likely to use the cash for car and home repairs, Christmas shopping, and school expenses, although inevitably some also use the money to go on holiday.

ECONOMIST: Consumer finance

Yet for all this success, go out on China's teeming shopping streets and Lenovo's brand still seems to need some polishing.

BBC: Rory in China: Lenovo's quest to be cool

Facebook can go shopping for a seriously undervalued company such as RIM, to diversify its revenue stream, acquire some patents, and look for further synergies in the related technology industry.

FORBES: Will Facebook Buy RIM? Uh, No, Not In A Zillion Years