Nothing beats teaching more novice learners about your passion, hobby, or craft as a business idea (that's a common theme here). Explore dozens of DIY portals (such as DIY.org, DIY Network, Instructables and Mahalo) to get business ideas on how to earn a healthy side income just by showing others how to do the things you love. You can also sift through the countless ad-supported YouTube channels that teach just about anything from guitar strumming to 3D printing.
Redefine wealth. In studies of millionaires, people are surprised to learn that most millionaires aren't doctors, lawyers, and corporate leaders with big houses and fancy cars; they're people who religiously live below their means and invest the surplus into assets, rather than liabilities. As you're taking the above steps to make more money, keep in mind that increased income does not necessarily equal increased wealth. Most people who flaunt their wealth actually have a low net worth because their debt to asset ratio is high--in other words, they owe a whole lot more money than they actually have. All of the previous steps have outlined aggressive strategies for making money, but you'll never get anywhere if you have a hole in your pocket.
Take good pictures. Some of the options below don’t require you to actually take the picture and sell the product, but for the ones that do, make sure you take a clear picture that makes your product stand out from the others. If you’re going to be taking a lot of pictures, set up a small “studio-like” area in your home with a backdrop and proper lighting to really make your pictures come across as professional. And of course, you’ll want a good camera too.
And while it will take time to build up a big-enough audience to attract advertisers and other ways to make extra income from your podcast, the opportunity is there. John Lee Dumas interviews entrepreneurs seven days a week for his podcast Entrepreneur on Fire and now makes more than $200,000 a month from it. In fact, John publishes all his income online and showed that he’s made almost $13 million since launching in 2012.
Similar to selling on Amazon, eBay is a place to make money selling just about anything you can think of as a side business idea, with the added excitement of using the auction selling model to sometimes get way more than you expected for that antique baseball card you picked up at a local street fair. To turn your eBay selling into a legitimate business idea, look for opportunities where you can buy in-demand products at a discount—and later sell them for a profit. Eventually, you can even take the lessons learned from your eBay store and build a full on blog or eCommerce business like what the team over at Gear Hungry has done.