If you have a knack for organization, you can make money online as a virtual assistant helping people to keep their days in order. A virtual assistant will do everyinthing from bookkeeping to research, database entry, booking travel, and managing email. It can also be an awesome way to rub shoulders with some very important people, build up your professional network, and of course grow another stream of income. You can find great gigs on UpWork, Fiverr, Indeed, and Remote.co.
But don't make the mistake of thinking this will be a passive source of income—you're on call whenever you have a guest and you'll always need to keep the place clean for incoming visitors. On top of just renting on Airbnb, consider offering your guests paid add-ons, like Lauren Gheysens', Royal Day Out in London, England—where she gives visitors a local's only tour of the city, complete with bespoke 18th century costumes.
If you are really short on cash and need some immediate funds then you should start by looking around your house. Clear out your cupboards and find any items lying around that you don’t need or haven’t used for a while. Then sell them on eBay. Just because they are gathering dust in your cupboards, doesn’t mean someone else won’t snap them up. Simply sign up with eBay, list your products and then, as they are sold, send them off to the buyers.
One of the cool things about Google AdSense is that it's so easy to get set up. If you have a blog or website, you can sign up for a free Google AdSense Account. From there, Google will give you a unique code that you will paste onto your website. Google takes it from there, tracking your page views, traffic, and earnings on your behalf. There is no upkeep or maintenance to get this thing going, which makes it a no-brainer if you have a website already.