Historical clue formulations

• Common stove residue to be cleaned up — 2025-04-16
• It smooths the way — 2023-03-12
• Musical that was the highest-grossing movie in 1978 — 2021-08-03
• Hit movie released as "Vaselina" in Mexico — 2021-03-28
• Musical with the song "Beauty School Dropout" — 2017-07-14
• "Summer Nights" musical — 2014-07-13
• Musical with the song "Summer Nights" — 2013-07-14
• ___ monkey — 2011-09-30
• Payola, e.g. — 2009-07-12
• 1972 musical with the song "Summer Nights" — 2008-09-25
• Garage sale? — 2006-02-04
• Travolta musical — 2005-02-09
• "Summer Nights" musical — 2000-11-29
• Launderer's challenge — 1999-01-31
• Bribe, informally — 1998-09-13
• Bribe, informally — 1994-06-15