When it's gone... it's gone
At early school age, I successfully brought products cheaply and sold them for a profit in the playground. In later school years I would visit car boot sales, early every Sunday to pick up used computer equipment, to then sell in the classifieds for a profit.
At college, alongside my studies, I became a mobile phone re-seller (right at the beginning of the market), selling tempting but lucrative phones and contracts (50 pence per minute!!) to fellow students. I was quick to learn the basics of profit and loss, knowing your market and selling solutions. I had an eye for business and that passion is still with me to this day.
I subscribe to the Economist, I read the BBC News business section daily, there’s consistently a business book in my ruck sack and I often find further reading material on business and economics.