Udemy is one of the world's largest platforms for selling online courses for just about any topic or subject. As long as you have the proper skills, you can likely teach those skills on a platform like this. However, don't expect it to be easy. Fierce competition means that you need to deliver loads of value and expertly market your course online if you're going to make any respectable amount of money.
Don't sacrifice morals for a quick buck — At the outset, you'll want to do all sorts of things to make money online, but don't sacrifice your morals for a quick buck. Not only will you put people off, but you'll lose Google's trust. You also shouldn't concern yourself with things like Adsense or other ads on a blog before you have around 100,000 visitors per day. Yes, per day.
Using a food delivery service can’t necessarily earn you money, but it can help you save you money if you constantly find yourself throwing out half the food you buy. Food delivery services send a box of food every week with new, sometimes unique vegetables, meat, fruit, and so on. If you don’t have time to shop and want simple meal-prep that leads to a good meal, a food subscription service may be perfect for you.