I hadn't thought about it, but this method would be very simple with bitcoin too.

The cash envelope system is a Japanese method called kakeibo! 

Some online banking platforms like Chase allow you (as in the generic you) to manage virtual envelopes. But that is assuming that you aren’t aspiring to get out of the fiat system haha: https://www.chase.co.uk/gb/en/hub/kakeibo-saving/


cryotosensei

I literally used envelopes of cash for this. After cashing my paycheck, I'd divvy it up into the four envelopes and that's what I had for those purposes until I got paid again.

It was very effective, but I think it would be overly inconvenient for someone managing a family budget.

Undisciplined

We are pregnant

ablunderfilledlife

Paperwork is a soul-sucking skill that I have yet to exercise healthily. The bills, the insurance--all of that my wife has graciously agreed to take charge on. She's the color-coded calendar whiz that I am not. 

I think if we sit down and agree on our allocations, she will gleefully account for them. 