Completing tasks is a quick way to earn some cash. Usually the tasks are short and simple and so the reward is small, however you can usually complete many tasks at a time. If you can be efficient, this is a great side hustle.
ySense, formerly known as ClixSense, has been around for a while and has helped their users earn money through offer completions, paid surveys and completing tasks.
Online Micro Jobs allows you to earn money for completing micro jobs. They are smaller rewards but they should be fairly quick.
Clickworker pays you to complete tasks such as proofreading, translating, copy editing, creating text, and much more.
We've created a guide to help you maximize how much money you can earn working from home.