There's a particular kind of panic that hits when your car breaks down, or you suddenly need to fly home because of a family emergency, or your company decides to "restructure" and your job is one of the ones being restructured away all at a time when your bank balance is sitting somewhere between "uncomfortable" and "please don't ask." An emergency fund exists specifically to prevent that panic from turning into a financial crisis on top of whatever's already going wrong. And yet, it's probably one of the most talked-about and least actually-built pieces of financial advice out there. Let's actually get into the specifics of how to build one properly.