There are many things that you can do as a virtual assistant. You can manage the social media of a business, website, etc. (Facebook, Pinterest, Twitter, and everything else), handle the newsletter, work on the website, proofread and edit, do market research, handle emails, and so on. The list is really endless. Are you interested in becoming a virtual assistant? Don't forget to also read about what exactly a virtual assistant does.

Make and sell crafts. If you are even a little bit crafty, consider selling your goods on a site like Etsy. Though you can make more money on intricate projects (ex. an exquisitely woodburned gourd), even labor-light projects can bring in good money if you’re willing to produce them in high quantities. Who knows – if you do well, you might even be inspired to start a crafts business.
Small crowdsourcing, online, and real-world tasks, sometimes called  micro jobs, have become an increasingly popular way to pick up extra cash. Short-task websites offer a way for buyers and sellers of services to connect. These gigs generally don't take much effort and, as a result, don't usually pay much. However, if your goal is to earn a few extra dollars, then micro jobs may be just what you need.
I see a comment made by Stella including some freelance sites. This does work. I use oDesk and it’s been a big help in bringing in a little extra money. I also agree with some of the other comments that mention people should think of or view more ideas of making extra money, because it really is possible to make extra money instead of just sitting around moping about not having money to pay the bills or buy something special.
For non-tech people (myself included), web design can cause a lot of stress. And stress means opportunity. If you have a knack for web design or web development, you should definitely be capitalizing on it. And since it’s such a foreign concept for many, it can be a really lucrative side hustle. You can find all sorts of gigs on Upwork. Also, you need to read this article: How to Make $5,000+ a Month Building Websites Part-Time
Websites like Survey Junkie will pay you a decent chunk of change for the low-maintenance, borderline mindless task of completing surveys. Companies want to understand consumers better, and one way they do that is by compensating survey-takers. Most surveys pay between $0.50 and $1.25, and many of them take less than 5 minutes to do. You can read our full Survey Junkie review for more info.