It's a lesson that I learned far too late in the game, but nevertheless, I have learnt it and am reaping the rewards.

When clients are rolling in the door, most entrepreneurs are counting the dollars and working out ways in which to service them.

In the past, I have said 'yes' to far too many dodgy characters - people who I knew would never pay their bills, liars and people who just don't fit in with our brand and culture. Every single time, it ended in disaster.