By the way; now that I think about it; indicates something brought to mind.
one-track mind
That said to be possessed by someone who is obsessed with something or …
touch a nerve
To make a remark or perform a deed which produces a strong response, e …
cast one's mind back
To try to remember a particular time or event; to think about somethin …
take something as it comes
To accept and deal with something (an event, etc.) as it occurs, with …
spring to mind
To appear suddenly in one's thoughts, often as an example of something …
bear in mind
To hold (something) in the memory; to remember; also, to be mindful of …