This is the best way to boost your earnings, as you have the most leverage at the moment that a company wants you but isn’t sure whether it can get you. Use that to your advantage in negotiations. Another benefit of getting a bump up when you switch jobs is that the percentage boost will be baked into all your future raises, elevating your lifetime earnings. Here’s how to negotiate your salary.
Upwork: This website offers a great marketplace for selling just about any professional service. You don't need a merchant account, a website of your own or anything else for that matter. All you need to do is be able to provide a high-quality service at a reasonable price. But be informed, you will have to compete with many others that are constantly bidding on open jobs.
Be professional. When you submit a résumé, don’t type it in ALL CAPS and please don’t avoid the caps lock like the plague. Know how to use it without looking incompetent. Write in complete sentences with proper grammar. Of course, there will be exceptions, but even with the exceptions, you must keep it professional. You’re building their view of you.