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.
Regardless if you need to earn some fast cash or we're just talking about making money in the grand scheme of things, there's an important psychology that needs to be mentioned before getting into the strategies. If you study Freud's model of the mind, you'll discover the Psychic Apparatus. It's the three-part construct in your mind that controls all of your behavior.