Acorns rounds up your everyday credit and debit transactions and automatically invests the spare change for you. It's only $1 a month and free for college students with an .edu address for up to four years from the date of registration. You'll barely notice the micro-investments of spare change, plus the Found Money feature invests money in your account when you shop with Acorns partners such as Macy's, Nordstrom, and Walmart.
Society6: Selling on Society6 is as easy as uploading a high-res file, then setting your retail price and your profit for each art print type and size. The site will produce, package, and ship the product for you. You can also add a large variety of other products, including phone cases, clothing, home decor, and bed and bath products, which have pre-set royalty payouts.
Opinion polls are usually online questionnaires which cover a variety of topics and sometimes include videos or images to comment. There are numerous opinion poll websites which use points-based systems. Each survey is awarded a specific number of points and users can claim financial or material rewards after collecting a certain number of these points. Some survey companies with rewards programs are Toluna, Your Opinion Counts or Opinion Outpost.
Work at home transferring data from one source to another. Most of these companies do not require past experience, although with few exceptions the pay may not be enough to consider it a stable income. Before you begin applying to any of the companies below (many of which sadly are almost never hiring), you might want to read the post I wrote about data entry jobs from home. It explains what your expectations should be prior to pursuing a career in this industry.