I just realized that it’s my 5th yead of following this pattern. Works for me!
Sometimes it’s like 40–40–20 (parties are needs too lol), but this 20% is static. I automated the savings through my banking app.
When I used to work (doing logotypes) for a living myself — my income fluctuated, so it was hard to follow 50–30–20 at the time, but now when I am a CEO of whole logo design studio, I am going with this pattern easily.
If your income is constant and stable — go for it! It is a positive change.