Most busy professionals I talk to don't have a spending problem. They have a timing problem.

Salary hits. Rent, subscriptions, and "I'll sort it later" all leave the account in the same 72 hours. By Wednesday the spreadsheet is already a lie, so they abandon it until next month.

The fix is not a prettier tracker. It's a weekly cash-flow view:

• What actually landed this week

• What must leave this week

• What's left that you can spend without touching next week's bills

If you can't answer those three in under five minutes, the system is too heavy. That's the bar I built Cash Flow around.

If your current sheet takes a Sunday to update, it's not a system. It's homework.