Disposable income. The amount of money someone could spend on voluntary or non-essential costs. You know, the money that’s leftover after you’ve paid taxes, paid your bills, and paid yourself. In our house, we think of it as fun money. My grandma loved to call it her mad money. Whatever it’s called, it’s money that can be spent, no harm, no foul.
This past weekend, I was catching up on my favorite podcasts as I paddle boarded across the lake, and I nearly sent my phone to its watery grave in an effort to re-listen to something I surely misheard. I had already seen enough tweets and references to the Tim Ferriss episode “How to ‘Waste Money’ To Improve the Quality of Your Life”, so I thought I already got the gist of it. But I wanted to give it a listen regardless*. What the rest of the Twitter-verse didn’t tell me was the number he uses in his hypothetical number crunching. Hold onto your iPhones, folks. Continue reading “The $5000 Tim Ferriss Math Problem”