Another minor nit in English Grammar: Should you hyphenate "Say so"? Attempting to investigate, the ONLY reference I could easily find were dictionaries, as there are virtually no references to "say-so" anywhere else, which makes me think the more common usage is "say so", though it's not terribly common in terms of Google results.
Does anyone have an authoritative source (usage vs. what Dictionaries consider correct from forty years ago)?