No 4. Start your own blog/website
Well, the most popular thing to do now-a-days to earn, is to start a blog. If you have some good writing skills, but you are too lazy to buy a domain of your own, then you can look for blogs that are hiring writers. Write down a good article and send them when applying for the job. You can earn good enough to pay your tuition.
No 3. Paid college internship
You can look for paid college internships as a good measure. Try this link.