Historical clue formulations

• "Ooh, let's do that!" — 2018-12-16
• "I like the way you think!" — 2017-06-22
• "That just might work!" — 2011-01-15
• Brainstorming result, perhaps — 2009-08-05
• "Sure, why not?!" — 2005-11-16
• "I like that!" — 1996-08-08