1. Take online surveys.
People these days make as much as 500 dollars a month filling online surveys. Some online survey sites areToluna, Vivatic, MySurvey, YouGov, SurveyBods, Valued Opinions, The Opinion Panel, iPoll, Global Test Market, Hiving, PanelBase, Harris Poll, Opinion Outpost, Yourword, Pinecone, IPSOS, New Vista. You can make as much as 5 dollars filling out some surveys.
2. Sell your knowledge in book-form.
If you have some knowledge on a particular topic and you love to write, you could write a book. You can publish to the Amazon Kindle store and keep 70% of your earnings.
3. Join a direct-selling company.
Some people earn as much as a six-figure salary selling products of brands they love. However, some brands require resellers to pay money up front to get started with these programs.
4. Sell your photos.
The photos you take can be sold to photo agencies like IStock or Shutterstock. Each time someone downloads your photos you get 25 cents.
5. Start your website/blog.
You could earn a six-figure salary annually from your blog or website. Through affiliate marketing, Google adsense and subscribers, you could rake in some cash.
6. Become a freelancer.
You could make money by selling your unique set of skills as services. You could try doing web design, content writing, and programming for many clients. Many people who do this earn between $40k to $100k a year.
7. Be a secret shopper.
Being a secret shopper means visiting shops to provide feedback to agencies on how their products are doing. The smartphone app Streetspotr could be helpful in the direction of getting mystery shopping job.
8. Sell your junk.
By selling junk on popular site like eBay could earn you as much as $2,000–$3,000 a month. You can sell what you no longer use, or you could buy other used items and sell those.
9. Do small tasks for businesses.
Small businesses need translators and transcribers, while others need people to write product reviews. You can earn a pretty decent amount from doing this.
10. Rent out your room.
You could take in a boarder to rent out an extra room. This could put more cash in your pocket if someone moves into your room or even onto your couch.