After you have taken control over your fixed expenses, it’s time to take a look at the outgoing household expenses. These include food, groceries, clothing, cleaners, entertainment, etc. Get out pen, paper, and your check book register. Average how much was spent on each of these items per month. You will be astounded at the figure. By far, the most money going out will be for food and groceries. The key to saving money on groceries is to make a menu for the week prior to going shopping. Get.