The literal meaning of the idiom is that there should be a designated place for everything, and every item should be kept in its proper place. The figurative or metaphorical meaning is that one should organize their life and possessions efficiently, keeping things neat and tidy.

The idiom "to heart's content" means to be satisfied or pleased to a great extent, especially with something that you are doing for yourself and enjoy doing.

The idiom "go bananas" means to become extremely excited or crazy. It can also mean to lose control or behave recklessly. The phrase is often used to describe someone who has gone insane or is behaving erratically.

The idiom "buy the farm" is used to describe someone who has achieved success or accomplishment beyond their dreams. It means that they have gone above and beyond what was expected of them and may even have surpassed the expectations of others.

The idiom "speak too soon" means that someone should not express their opinion or prediction prematurely, as it may turn out to be incorrect or unfounded. It is a warning against impulsive speech and reflects the idea that one should wait for more information before making a judgment.