Yeah, thanks for sharing.
It took me some time to realize that, yes, those small savings do add up. 50 on coffee and 100 on lunches per month cannot be ignored. Not just in absolute terms, but once I started paying attention to the small savings, I also saw the potential of that monthly 150 in a savings or investment account.
My favorite quote from the article: "And while returns are out of investors' control, saving diligently and controlling costs aren't."