This document lists and defines 10 common English idioms: a stitch in time saves nine means dealing with small problems now can prevent bigger problems later; you are what you eat refers to how one's diet affects one's health and personality; food for thought provides ideas to consider; something smells fishy indicates suspicion that something is not quite right; bigger isn't always better cautions against assuming more is necessarily better; to hit the sack means to go to bed; work for peanuts refers to doing a job for very little pay; cry over spilt milk means worrying about past mistakes; once in a blue moon means something that rarely happens; and thank you to express gratitude.