Not just via your old notes you can help your juniors by providing them with tutoring sessions, and make money with it. You can also choose the online tutoring option like Preply for earning money, in a subject with the number of views and download one gets. You can give tutoring lessons of some musical instrument or dance form, coaching is for anyone who holds cognition about something that people would be keen to learn. This is the best way to earn money, as I frequently discuss this in my write-ups. For every person there comes a different way of coaching, one can also become a home tutor. Many parents search for home tutors all the time.
If you are fluent in one of these in-demand languages, then you can earn some money on the side by providing translation service when you have free time. You can find translation jobs by joining translation agencies or freelance sites. There are different types of translation jobs to choose from based on your skillset. Here are some websites or companies where you can find translation jobs:

Each course is taught by an expert instructor who has created the course. Udemy hosts the courses created by thousands of instructors from the world over. The website does not charge anything for hosting the course. This means that you can host as many courses as you want on Udemy without having to pay a single cent. The price of your course can range from $10 to $50.
Data entry is a simple job that students with basic computer and fast and accurate typing skills can do from the comfort of their computer. Typically, data entry work involves typing up data fast and accurately for clients. Many students earn money working part-time doing data entry jobs. You can find genuine data entry jobs on the following websites:
×