In it, Bach described a strategy he dubbed "The Latte Factor" that involves putting aside the equivalent cost of a cup of coffee each day.
"I immediately found the idea fascinating. And as a money blogger chasing total financial freedom, of course I wanted to figure out how much I'd have to save per day to reach my ultimate goal: a US$1 million [NZ$1.48m] dollar portfolio and an early exit from the rat race," Potter wrote.
Building on Bach's plan, Mr Potter eventually came up with The 30 for 30 Rule — which involves saving US$30 (NZ$44.28) per day for 30 years.
"All it takes to become a millionaire is to save just US$30 a day (that's assuming the stock market's historical 7 per cent rate of return). Over and over again," he wrote.
"I don't know about you, but I immediately found this incredibly relieving. I'd be intimidated if the only path to wealth was a lucky break, a brilliant business idea, or a Powerball victory.
"But US$30 a day? Anyone can save US$30 a day!"
These days, Mr Potter is saving around US$100 (NZ$147.60) a day to put towards his early retirement plan, which he's done by picking up extra hours at work and cutting back on spending.
He also invests in a "mix of index funds" that has increased his net worth from US$158,000 (NZ$223,000) to US$231,000 (NZ$341,000) in one year.
"A little bit of effort, over and over again, is all it takes to build serious wealth," he said.
Mr Potter's ultimate goal is to retire early, and he is now on track to pull off that feat by age 37 "at the latest".
Mr Potter regularly updates his followers on his growing net worth and his expenditure and he has also shared a number of strategies for cutting back spending in all areas of life including holidays and Christmas shopping.