Please note that some of the links below are affiliate links and at no additional cost to you, I will earn a commission. Know that I only recommend products, tools and learning resources I've personally used and believe are genuinely helpful, not because of the small commissions I make if you decide to purchase them. Most of all, I would never advocate for buying something that you can't afford or that you're not yet ready to implement.
High-ticket consulting or coaching: You could sell your own high-ticket consulting or coaching products from your website. You'll still need a website, merchant account, sales funnel, lead magnet and many other items. But you can easily earn a substantial amount of money from each individual customer, making it well worth the arduous setup required.
Sign up for a reputable affiliate network: Aside from Amazon, there are dozens of large reputable affiliate networks, such as Share-A-Sale, Clickbank, and Skimlinks, that specialize in connecting you with merchants who are looking for affiliates to sell their products. They charge relatively low commission fees for the privilege of connecting you with merchants, and the merchants on these sites tend to offer much higher commission percentages or set dollar amount payouts.
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.
Whether it’s an important consumer application, a specialist app to solve a particular niche problem, or even a time-wasting game you can play on your phone, you can create a massively successful business if you build software that helps people. (Look at the rise of Slack—the team communication software that went from side project to billion-dollar company in just 2 years.)
Start a blog. Blogging is how I make a living and just a few years ago I never thought it would be possible. I made over $320,000 in 2015 by blogging and nearly $1,000,000 in 2016. You can create your own blog here with my easy-to-use tutorial. You can start your blog for as low as $2.95 per month plus you get a free domain if you sign-up through my tutorial.
Hold a yard sale. If you have a yard or garage and plenty of items to sell, you can have a yard sale as early as tomorrow. By advertising your sale on local Facebook pages and Craigslist, you can also skip the paid newspaper ad and keep all of the profits for yourself. If you don’t have time to price everything, try asking patrons to “make an offer” or grouping similar items on tables with an advertised price (e.g. everything on this table is $5).
Sell plasma. After passing an initial screening, you can usually sell your plasma for anywhere from $25 to $50 per donation. To qualify, you’ll have to stand in a long line or show up early, be willing to fill out a very personal questionnaire, and endure a painful needle prick or two. Still, selling plasma is a great way to raise money fast – if you can stand the hassle.
Websites like Survey Junkie will pay you a decent chunk of change for the low-maintenance, borderline mindless task of completing surveys. Companies want to understand consumers better, and one way they do that is by compensating survey-takers. Most surveys pay between $0.50 and $1.25, and many of them take less than 5 minutes to do. You can read our full Survey Junkie review for more info.