Reselling textbooks — This is a great way to bring in some money. When you’re done with a textbook, see how much it’s going for online. You can even compare that price to what the booksellers on and around campus are offering, and see which one gets you the best deal. (Buying used textbooks online is also a great way to keep more money in your pocket each semester!)
If you have a passion for fitness, you could consider becoming a personal trainer. A lot of people simply need accountability and a little instruction to get going to get fit, and a personal trainer can help with this. And that's just the beginning. If you get a following, you could turn your passion for fitness into something big like Steve Kamb did with Nerd Fitness.
Every college student possesses some unique skill set and based on that they make money online with micro jobs websites. Micro tasks include works like review writing, blog commenting, social networking sites and forum posting amongst others. These websites are a good place to start with and they could expand their knowledge and experience from there.
As an Uber driver, you can choose your own hours to hit the road and make extra money. So if you want to drive for Uber right after you finish at your 9-5, you can do that. If you want Uber to exclusively be your weekend gig, you can do that too. We like Uber because its easy to get setup and its one of the more flexible money making ideas out there.
Watch for emails asking for note-takers. Once a fellow students' needs are documented, disability services will contact the professors and ask for volunteers in the class to take notes, and your professor will in turn email the class. You can also upload your notes to a platform like Stuvia, where you can earn money by selling your notes to other classmates.