Feature Proposal: Additional Field "Notes"
I think it would be useful to have an additional text field "Notes" below the tags and additional keywords, that is not searchable but primarily used to make remarks to documents, such as "dealt with: date" if it is something actionable. The document would then go by its own date, but in the notes you can see when you dealt with it, i.e. made the bank transfer for an invoice or sent an e-mail or filled a form as you were requested in the document.