Blogger, which you can set up for free in less than five minutes, automates Google AdSense so that you can make money with your blog by displaying ads and getting paid when people click on the ads. To make more money, set up an affiliate program (see below) for books, music, and more, and insert your affiliate links whenever you refer to those items. A good strategy to set you on the path to success is selecting a unique topic, writing intelligent copy, and telling all your friends. You'll be off to a better start with a targeted audience.
Most of these ideas can be scaled up to meet the needs of more customers and can have a huge impact on your financial prosperity. People who land on this page are looking for ways to make money right now. Some of these may be cliche, but that’s because they are proven. You can start making money tomorrow with most of these ideas. You can then, overtime, scale/pivot these active jobs into more passive entrepreneurial efforts. For example, you could start bar tending tomorrow and then one day become a bar owner or beer/wine producer or event planner or whatever you dream up. The point is to get going with something and look for ways to add more value to more people.
Teaching music requires skill, but you can make money on the side just by being able to sign things -- if you become a notary public. The rules vary by state, but you can expect to pay between $100 to $500 to become a notary public and start advertising your services. The National Notary Association reported in 2017 that half of part-time notaries were averaging up to $250 per month (that's $3,000 per year), with the other half earning more.
For anyone who has capped at their current job, it could be time to look for another. If your salary is capped, it typically means that you are an expert for your current job, and the company can’t pay you anymore money for doing the same job. Take this as a sign to better utilize your skills at a more challenging, and subsequently higher paying job.