Choose the right location. Go where the good jobs are. If you want to pursue finance, for example, there are far greater opportunities in big cities than in rural, low-populated areas. If you want to build a startup, you'll probably want to consider going to Silicon Valley. If you want to make it big in the entertainment industry, go to LA or New York City.
A wide range of businesses need workers to enter various data into their systems, whether that data are used to track inventory or shipments, create business plans, or measure performance or output. And since a computer and typing skills are the most important requirements for this job, many data entry workers are able to work at home, and on a schedule that fits their lives.
People are always looking to have their cars washed and detailed. You could be a mobile car washer and detailer without having a permanent location. Reach out to people you know or make some flyers and put it in your neighbors' mailboxes. If you want to get serious about it, prop up a one-page website or give out business cards. You can make money quickly doing this.