For the former ad exec turned business mentor and high performance expert, the arrival of his two daughters, Capri, 5, and Monet, 16 months — with entertainment reporter wife Kathryn Eisman — meant finding time became his greatest challenge.

“When you are single you think you’re busy, but once you have kids you realise you were awash with spare time!” laughs Reynolds, who is back in Sydney this week to launch his latest book, Win Fast.

“You do completely different things, you see different people, you start thinking in a different way, you eat and sleep at different times. You’re in a completely different world. And at first I found that confronting.”

Still driven to achieve, but without the same “self-centred existence” he had been living, Reynolds realised the old systems of time management just didn’t work any longer.

Unable to use the successful business techniques he had been teaching CEOS and celebrities for decades, he realised finding time was his greatest challenge.

So the man who became one of Australia’s youngest self-made millionaires by 21 and whose Grim Reaper AIDS campaign of 1987 is still talked about, developed Win Fast; a blueprint for success for people who do not have enough time in the day.

High performance techniques that revolutionise how we use time. Things like not answering the phone 90 per cent of the time, making your desk like The Sahara Desert and the 64/4 Rule. He lives by the techniques.

“At 5:45pm every day I stop and walk into the living room and be a dad.

“I walk in the door and just enjoy life,” he says of his routine. “I’m super strict on my time up until then.

“Every single thing is set on a timer on my phone. I exercise for 22 minutes … I monitor time really closely and I record every single thing I do. I could tell you what I did three Tuesdays ago at 3pm …

“I write down and analyse it. It’s incredibly effective in helping you achieve things. It’s handwritten and it’s one of the techniques in the book.

“Most people make the same mistakes for ten years, so I take three minutes every day to record what I did well today and what I can do better … it keeps me focused.”

He admits he’s not super human, it’s just about making the mental switch. “I make mistakes all the time, but you’ve just got to get back on the horse.”

One of the techniques in Win Fast is the 80 per cent rule. “Just do things to 80 per cent. It’s still good, no one cares about the last 20 per cent — and that’s what’s responsible for most the pain. The second concept is to rush the un-important. There are only a handful of things that really do matter if you think about it”.

On his visit back to his home turf ahead of Father’s Day, which he will spend with the three girls in his life, Reynolds is reflective. He admits he was driven by a fear of failure for a long time.

Growing up in a successful family in Edgecliff and Double Bay the youngest of four siblings, including his brother Guy, a barrister and his late father, Tom Reynolds, who was a Supreme Court judge and one-time mayor of Woollahra, the Sydney Grammar student admits he had a real chip on his shoulder.

“I wasn’t the black sheep of the family, I was kind of the grey sheep. I didn’t do so well at school and I had wanted to leave before my HSC but mum wouldn’t let me,” he explains. “I wanted to prove to people I wasn’t as useless as some people at school suggested, so two weeks after the HSC I was working full time in an advertising agency.”

When his beloved father, (who he describes as very passed at 56 from cancer, he was forced to wake up.

“Dad was a very happy person, he was super balanced. I learned a lot about how to be successful and be light, he had a wonderful energy …. You realised what’s important and it reminds you how limited time on earth is”.

When his mother also passed, at 63 to a different type of cancer, it hammered the points home. “The reason I’m so driven is I can see how tenuous life can be, one of my greatest fears is getting to the end of my life and feeling like I’ve wasted it”.

Embracing life’s big adventure, Reynolds gave up the playboy tag when he fell in love with Eisman, who is the founder of cult fashion sock line High Heel Jungle. The couple moved to LA, married and had babies.

These days family is what matters. “It is as every father will tell you impossible to say no to your little girl,” he laughs, admitting the family will one day return to their roots in the eastern suburbs.

“It’s just ridiculous. I’m a compete sucker, even at five and half Capri knows how to look at me where I want to give her the world and throw the moon is as well,” he laughs.

“I think every cliché of parenthood is true — it’s exhausting, it’s wonderful, it tests you, it changes you. All true.”