Related Clues:

• "If I've told you ___ . . ."
• 'There was this time when...'
• "There was a time . . ."
• Sans repetition
• Bedtime story opening
• Start of a fairy tale
• Never before and never again
• First word in many a fairy tale
• "Going ___ ..." (auctioneer's cry)
• Not to be repeated
• In days of old
• "Going __, going ..."
• Start of a bedtime story
• "___ Upon a Time in America"
• 'The Raven' opening