What's the most critical factor in any business decision you'll ever have to make? Basically, it boils down to this question: If this all crashes, will it bring the whole house tumbling down like a pack of cards? One business matra remains embedded in my brain - protect the downside.

I love the freedom of movement that my phone gives me. That has definitely transformed my life.

Screw it, just do it!

Just start. You will learn so many lessons just by doing.

Throughout my business life I have always tried to keep on top of costs and protect the downside risk as much possible. The Virgin Group has survived only because we have always kept tight control of our cash. But, likewise, I also know that sometimes it is essential to break these rules and spend lavishly.

If something can't be explained on the back of an envelope, it's rubbish.

Fun is at the core of the way I like to do business and it has been key to everything I've done from the outset.