Sudden changes in your financial future are always possible, so now's a good time to start saving money to put into mutual funds and green investing. A fast way to cut back on needless spending is to follow a budget. Only allow yourself a certain amount of money to spend on food, clothes and entertainment. Get a library card instead of buying books and dvds. Drink filtered tap water instead of bottled. Make your own lunches and coffee to bring to work. Shop at thrift stores instead of the malls to find clothes at a fraction of the price.