Do odd jobs around the neighborhood. Will someone let you mow their lawn? If someone needs help with chores then offer to help for a little cash. When they see you do a good job they might give you a regular job. Check and see what neighbor needs help.
Hm... You can make a business robbing banks, or sell drugs. No, I'm joking. On the side, you can make money by having an online business, picking up really good stuff that the rich people leave for the trash, and take advantage of the money opportunities.