Working online could actually earn you more if you play your cards well. For example, if you take on two jobs a day, you will earn less than a person who does five jobs a day. Your earnings fully depend on how much expertise you have and how willing you are to work. This means that you get value for your time and effort as opposed to working in an office for a fixed salary at the end of the month.
Mechanical Turk: Amazon's Mechanical Turk is a resource for doing human-intelligence tasks, or as the site commonly refers to them, HITs. You get paid a very small fee for any given HIT and you'll need a good deal of volume to make a substantial amount of money. But it is a resource you can use in your spare time to generate a small income online. 
6. IZEA – IZEA works in addition to a blog or on its own. You get paid to blog, tweet, take photos and take videos. The pay is mostly based on your following, so if you want to make money with your tweets, you’ll need to grow you Twitter following.  Likewise, if you want to make money with blogs, you’ll need substantial blog traffic (more on blogging below).
I surprisingly get a lot of people asking to detail their car. I never intend to make a business of it, but I love doing it to my cars and people ask me to do it to theirs. All it takes is a cheap orbital buffer (mines a used craftsman) and a shop vac. I normally get easily $100 for a basic wash/wax/vac, or $200 to remove scratches and polish then wax the car.

While some might think that starting a blog is an arduous effort, when you understand the precise steps you need to take, it becomes far easier. It all starts in the decision of choosing a profitable niche and picking the right domain name. From there, you need to build your offers. You can easily sell things like mini-email courses, full-blown trainings, ebooks, and so on.
– Project Payday is one of those sites that has testimonials of people who have earned thousands of dollars by getting paid to get trial offers. I’m not saying you’ll earn thousands, but it is legit and you can earn some extra cash. They assume that by paying you to do a free trial, you’ll either like the product and purchase it, or forget to cancel the trial and get charged for it. If you can keep track and cancel before you get charged (if you don’t want the product), then this is a great site for making some money.
Buy underpriced used books. Outfit a phone with an ISBN reading app, scan the ISBN numbers of books at used bookstores and thrift shops, and compare the asking prices with what the books are selling for on a site like Amazon. Whenever you get a good hit (which won’t be often but, since the process is fast, won’t take long, either), buy the book and resell it online. Be discreet about this, as the store managers probably won’t like what you’re doing. 

Recognize that time is money. This critical piece of advice is attributed to Benjamin Franklin, who was an accomplished American inventor, journalist, printer, diplomat, and statesman--the ultimate multitasker. Your ability to manage your time (and stop procrastinating) is a critical ingredient in your ability to make money. Whether you have a job or are self-employed, keep track of what you're spending your time on. Ask yourself "Which of these activities make the most money, and which of them are a waste of time?" Do more of the former and less of the latter, simple as that. When you're focusing on high-priority tasks, get the job done well, and get the job done fast. By working efficiently, you're giving your employer or clients more time, and they'll appreciate you for it. Remember that time is a limited resource that you're always investing. Will your investments pay off?
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