Historical clue formulations

• Proceed well enough — 2018-04-15
• Icky stuff — 2004-01-21
• Icky stuff — 2003-11-04
• Too heavy makeup — 2001-01-07
• Sticky stuff — 2000-04-04
• Sticky stuff — 1999-03-08
• Sludge — 1998-01-18
• Makeup, informally — 1996-02-21