For those who keep track of these sorts of things, take note: ESPN no longer has a monopoly on extreme sports.

FORBES: Toned and ready

Start with your day-to-day spending - keep an accurate note of everything you spend for a whole month.

BBC: Fergus Muirhead

You need to keep an absolutely accurate note of everything you spend for a period of at least a week, but preferably a month.

BBC: Pile of coins

Working with 400 school children aged between nine and 11, the team assigned whole classrooms either to perform and note down three kind acts per week or - as a control group - to keep a diary of three locations they visited each week.

BBC: Kinder children are more popular