There is one expression I came across recently - 'The take home is ...'. The full sentence was “The take home is that regular use of caffeine produces no benefit to alertness, energy, or function”. Can anyone explain what does the beginning of the sentence mean? And does it have something in common with another expression "to drive your point home"?
The take-home or the take-away of something is its most important point or lesson. It's the one part you should carry (home) with you to remember.
Edit: As Sam correctly notes, the origin of this phrase lies in the amount of your salary you take home after taxes, etc., have been deducted.