Unless you are one of those incredibly impressive people whose home is always immaculately clean, you will be well aware that there is a huge demand for home cleaning services across the world. Where there is demand, there is opportunity!
Freelance cleaners can work when they want, where they want, and charge a decent fee for their time. Start up costs are minimal, and little skill is required, however to make your freelance cleaning business a success, you will need to know basic business licensing/legal requirements, and be able to attract clientele.
For more information on what it takes to start a cleaning business I recommend reading this article