How do you keep track of household bills?

I’m launching Bill Sorted tomorrow and would love to learn how people manage household bills today.

Do you use spreadsheets, calendar reminders, banking apps, email folders, or just memory?

The problem I’m working on is that recurring bills, due dates, documents, payment history, and shared household admin
often end up scattered across too many places.

What works for you, what breaks down, and are missed bills or shared admin still a real pain point in your household?