If it's a document that occurs once a month or less often, I put it into "yearly" folder, if I know that's something that fits into specific "context" (like, co

If it's a document that occurs once a month or less often, I put it into "yearly" folder, if I know that's something that fits into specific "context" (like, company bills or something) I put it into that specific contextual folder (which is also stacked per year). All of them I put into dedicated steel cabinet for documents.