I recently bought a label printer had set about my filing system.

When choosing where to file a document sometimes its obvious:
  • Docs related to an event go in a folder labelled for that event
  • Docs related to a project, have a project folder created for them
  • Docs of a very specific type have their own folder (eg payslips)

Are there any other obvious categories?

A lot of my documents, though, are bills, statements, FYIs letters that relate to ongoing concerns like car insurance, loans,

It occurred to me that I can group these by the thing that they're related to (house, car, health) or the concept (insurance, invoice, etc). I think you need to always file according to things or concepts and not mix them up (there is an obvious problem if you have a car and an insurance folder).

How do other people solve this problem, or do other people not have this issue?