How did your childhood influence your attitude to money?

I grew up in a four-bedroom cottage on the Isle of Wight – me, my sister (who is eight years older) and my mum and dad. Dad was initially in the Marines and then he ran a wine business and, at the end of his life, he became a politician. I had to earn my pocket money and I could be fined for bad behaviour. From the age of about six, if I did something nice or made my bed well, then my parents would give me 10p at the weekend. But if I misbehaved, they would fine me up to 50p, which gave me a sense of value.