Once you finished Baby Step 1 and Baby Step 2, you are ready for Baby Step 3 which is to put aside 3 to 6 months worth of expenses into your savings account. This will be your full emergency fund. Take the time to look at your monthly expenses and figure out how much money you would need to live for 3 to 6 months if you lost your job. Whatever amount you come up with is how much you should have in your full emergency fund.
The important thing to remember is that this money is for emergencies only such as any unexpected incident which would have a major impact on you and your family. This emergency savings should be kept in a money market account so that it can easily be accessed in an emergency. The key to remember is that this money is not investment money, but insurance money for you to use when the unexpected things in life happen.