Historical clue formulations

• "New and improved" and "For a limited time only" — 2025-10-08
• "E-Z" or "xtra" — 2020-10-03
• "But wait, there's more!," e.g. — 2020-06-14
• "Friendly staff" or "For a limited time only" — 2016-10-15
• "Operators are standing by" and "Call now!," e.g. — 2013-11-17
• Marketers' "language" — 2009-09-29