"Do you have an idea?"
That would sound very surprising, in Polish "idea" is rather used for some really grand ideas, like the idea that all people should be equal. Kind of a philosophy term. So a simple "maybe we should try using a screwdriver?" to pomysł, nie idea.
There has to be some kind of 'rule' / guide on the adding of 'po'. Myśl / pomyśl? What is the difference and how should I understand how and when to use each?