Money goes into their checking account and bills are automatically paid.
As long as they live below their means they can build up quite a bit of excess cash.
They never look at their paycheck because they never see it.
The money is always just there.
Their accountant would have caught it at tax time.
I get the automatic bill payments, the direct deposit, all that ...
I do a lot of that, too.
I also scrutinize my bank, investment, and credit card accounts. Need to make sure that all is in order, across the board. Trust nobody ...
I’ve written 4-5 checks in the last 3-4 years. Everything else is auto-pay. Makes life easie, but I do check my checking and savings accounts every 1-2 days to make sure no one has hacked my accounts.