Direct sales — Last but not least, direct sales can be a great way to make some extra money as a college student. These companies often have minimum sales goals, but a lot of them are very doable minimums every three or six months, so the burden isn’t too heavy even when you’ve got a busy semester. The key is to find a direct sales company selling something you absolutely love, can afford, and want to share. The good news is that there are tons and tons of direct sales companies, so you can go into it selling just about anything. Stella & Dot is one of my favorites.
Creating Gigs on sites like Fiverr is a great way to get your freelancing career started. A gig is something you can do well, and are willing to do it for other people. For example doing programming assignments for somebody, making good quality sketches for somebody, etc. It could be anything! Indeed, if you head over to Fiverr right now, you’ll see a wild assortment of some of the craziest things people are willing to do! On Fiverr, you get $4 per job, which isn’t much. But there are ways to earn more than just that. Aside from Fiverr, there are other many alternatives, many of which pay more than $4. So if you can’t seem to sell your gigs at Fiverr, then try your luck at something else!
Along the same lines as trivia, you can get paid for just using your mobile phone and allowing companies to know what you're doing on it. For example, Nielson Mobile Panel is an app that you can earn rewards on just for having it installed. It will take snapshots of what you're doing and use those for advertisers to know more about your demographic. It takes away some privacy, but you get paid for it.
Barter your services with friends. Do you spend more than you'd like getting your hair and nails done each month? Do you have a friend who can't resist the pastries at the coffee shop or who pays for a personal trainer? Think about what both you and your friends spend money on, and then see if there's a way for you to barter and trade services with each other in order to save money.