Postmate is food delivery service, it is similar to Uber, but for delivering foods.
You usually get around $6-$10 per delivery depending on the distant between the customer's house and the restaurant (not including tips)
But good thing is you can do it any time, just turn the app on and off whenever you feel like doing it, no fix schedule.
Sign up here:
Click here to Sign up
You don't have to use this link but if you use my link you will earn $100 sign up bonus. You will have 30 days from their sign up date to complete 60 deliveries to get the bonus.