I often receive letters signed "Yours Very Truly", or "Very Truly Yours", usually from private sector consultants and lawyers. Sometimes it is preceeded by "As always, I remain...". What exactly is this supposed to mean? To me it sounds like something belonging in a 18th century love letter, not something you'd write to a lowly government bureaucrat.
Is this just something that originated in archaic english and was passed down through the generations of letter writing? Are there other similar odd salutations/signature lines that you know of?