If your goal is to make enough money to retire early, prioritize earning potential over job satisfaction, since you plan on getting out of the rat race early, anyway. Consider the types of jobs that pay extraordinarily well in exchange for hard work, little psychological satisfaction, and a punishing lifestyle, such as investment banking, sales, and engineering. If you can keep your expenses low and do this for about 10 years, you can save a nest egg for a modest but youthful retirement, or to supplement your income while you do something you really love doing but doesn't pay much. But keep in mind that delayed gratification requires clear goal-setting and strong willpower.
Double check yourself, before you double wreck yourself. Make sure everything you send to a company, whether a résumé, an email or a portfolio, is good to go. Double check your grammar and wording, and for God’s sake use spell check! This is especially important when it comes to the company’s name. Don’t spell their name wrong and be sure to type it how they type it (e.g. Problogger, not Pro Blogger).
Design web images. By pairing good aesthetic sense and the use of design or photo-editing software, you can make and sell background graphics for social media pages, web logos, or computer icon packages. If you know or are willing to learn computer programming, seriously consider making web pages; programmers may be easy to come by, but programmers with an eye for beauty are another thing altogether.
Amazon makes it fairly easy to list and sell old books on its marketplace. You can make more than just a few bucks If you have pricey text books from college. Be sure the books are in good condition. You'll get negative reviews if you attempt to sell books that are falling apart. Remember, add value where you can, no matter how small it might be and no matter how few people might readily notice it.
What does that mean for you? It means Nielsen will pay you $50 a year to keep their app on your favorite internet browsing device. The app itself collects statistics on your internet usage anonymously, so you never have to worry about any data being linked to you. And the best part is, the app takes up barely any space and doesn’t slow down your phone or tablet at all!