If you have an extra room in your home, consider renting out that space for guests on Airbnb. This is a popular option for people who live in cities that are tourist-centric and have lots of events throughout the year.Source:https://www.schoolofmoney.co/

If your handy skills are in high demand, you can earn quick cash by offering your services on a site like TaskRabbit. You can help out with things like assembling Ikea furniture, mounting TVs and cleaning. You get to set your rates and keep all the money you make, including tips.

Unlocking Financial Freedom: Proven Methods to Earn Extra Cash

You can also get paid to test new apps and websites on a site such as UserTesting. All you need is a computer and a working microphone to record your thoughts. This is a great way to earn some cash in your spare time and learn more about the latest tech.

Selling digital content is another great way to earn money online with a low startup time. This includes things like guides, ebooks, templates, music samples, and plans that you can sell to your audience via download or log-in access. It’s perfect for creatives or those who have a strong social media presence.

If you’re a student, chances are your university has research studies going on that need volunteers. This can be a great way to earn cash and even gain a mentor in your field.