Become a virtual assistant. Virtual assistants perform a wide range of services for their clients, all of which can be completed online. Depending on the day, they may open and reply to emails, schedule online work or blog posts, write mock-up letters and proposals, or perform data entry. You can look for virtual assistant jobs on sites like UpWork.com and Problogger.net.
Websites like Care.com connect parents with babysitters. The company does all the background checking and other due diligence to put parents' minds at ease. Of course, you can appeal directly to people in your personal network, but if you're looking to generate recurring revenue sign up with a site marketing to parents looking for child care services.