Search for freelance writing and editing gigs. The rates for these jobs vary: you may be paid by the word, be offered a flat rate for a project, or in some cases can be paid an hourly rate. You typically won't be able to retain copyright over your work or collect royalties, however. Even so, by doing freelance work you can build a portfolio and make valuable connections which may later pay off with more stable job opportunities.

Busy professionals outsource their laundry more often than you would think. If you live in a dorm or apartment building, you could offer to start a laundry service for all your friends and neighbors. Instead of them having to make their own trip to the laundromat, you could combine their trip with yours, and charge them a small fee for it. Considering you do laundry each week, this could be a great recurring revenue stream.
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!)
For an instance, I had a college mate who had an amazing skill of coding, being into computer science engineering itself an experience with this field would have graced her certificate, but being in a Gurukul, we never had many opportunities to get out of the campus and apply. Hence, she began her hunt on ‘Internshala’ where after accomplishing one project they gave, she started working as a coder with a startup company and a technical writer, and she got certified for her skills and knowledge while getting paid with an average stipend as well.

Who actually goes to the grocery story or regular store anymore? It seems everyone simply shops online now. Before you make any more purchases online, make sure you sign up for Ebates. This service will allow you to get rebates on 1,000s of online shopping places, including Amazon, Target, and more. I've made $2,400 since signing up for Ebates! Check it out here.
These following work ideas are where the true income potential is! This is because you can partake in any of these income streams from anywhere with an internet connection. Even better, you can use your technical skills and these projects to build your portfolio and potentially turn into a long-term income stream that lasts well beyond your college years.