Wikipedia defines common sense as “knowledge, judgement, and taste which is more or less universal and which is held more or less without reflection or argument”
Try to avoid using this topic to express niche or unpopular opinions (they’re a dime a dozen) but instead consider provable intuitive facts.
Folk idioms that contradict each other are my favourite. For example, “the cream rises to the top” vs. “it’s not what you know, it’s who you know”.
I like to try and combine these to see what kind of reactions I get.
The cream rises to who you know.
The squeaky wheel gets hammered down.
He who laughs last, comes around.
Great minds killed the cat!
“The squeaky wheel gets the grease”
“The nail that sticks out gets hammered down.”
Good call, I’ll start looking out for these!