What is the origin of the idiom "for my money" and when to use it?

The idiom "for my money" is a colloquial expression that originated from informal conversations and debates. It is used to convey one's personal opinion or preference, often implying that the speaker believes their viewpoint or choice is the best or most valuable. The phrase "for my money" is a way of emphasizing that the speaker is speaking from their own perspective or making a subjective judgment. It is commonly used in casual conversations, discussions, or reviews.