Mostly simply, “micro jobs are small, easy tasks that can be completed in a short amount of time, and generally earn you between $3 and $100. They’re often online jobs that you can do from home, but there are local opportunities, too. They don’t require an interview, meetings, or set hours, which makes them the perfect vehicle for making extra money on the side.”
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.