But, you don't need to go further than that. You can simply write it and publish it and collect the income. That's all. Send out a couple emails to your list (if you have one) or post it on social media, and there you have it. Passive income. Now, the amount of income you receive depends on the quality of the book you've written. How well did you craft the message? How targeted was the information to your audience? It counts.
Leonardo da Vinci is another example of someone who was a "wide achiever," in the words of Roman Krznaric, author of "How to Find Fulfilling Work." Da Vinci was alternately a portraitist, an inventor, and a scientist. Krznaric says that in light of decreasing job security today, spreading yourself among several different jobs, as da Vinci did, is probably a smart thing to do.
Owning property can earn you passive income for decades to come. Once you purchase a duplex, home, or apartment building as a rental property, you’ll earn a consistent monthly income with little work. Rent should cover your mortgage, taxes, repairs, and other expenses. You’ll continue to earn income by paying off your mortgage with the rent money and saving excess rental income.
So, it’s like the 7 Deadly (S)Incomes? Ha. Bad joke. I never really thought to count them up or even name them but I’m a big fan of having multiple streams of income. Let me count. 1) Earned income (freelance pharmaceutical copywriter) 2) Royalty income (published book) 3) Interest income (savings accounts) 4) Business income (my personal finance blog) 5) Pension beneficiary (RIP daddy) Crap. Only five and only 1 that pays anything substantial. Hmmmm. Time to brainstorm. Thanks, Doc.
That income is considered residual income because as long as the apartment is rented and the rent is collected, the income is earned without additional effort. The effort came when the property was purchased and a tenant was found. Each month after that, the money automatically is paid without buying the apartment again or finding the same tenant each month.
While compiling this list, I did my best to avoid scams, and stick with practical ideas that work. I have tried many (but not all) of these ideas. Some of these helped me earned a few dollars here and there, but there are some that helped me earn extra money on the side every single day — and some are still providing me with revenue! Note that not all ideas will fit your skills and abilities. What works for you depends on your abilities and your current financial situation.
Having a job is a great way to start making some cash flow, but you should use it to actually start a business. A job isn’t scalable. You only have 24 hours in a day, and you're not even going to work more than 12 hours in a day. Having access to the internet is all you need, you can see that attention is now the new way to becoming successful. The more exposure your brand gets (whether that is from posts, social media, websites, etc) the more opportunities you have to monetize off your traffic. When you have a lot of people's attention, and you create a product, you’re likely to make a sale. THIS IS SCALABLE. Anything you put out on the internet compounds, continually getting more and more traffic that gives you a chance to make a sale.

Residual income is when you continue to get paid after the work is done. This includes royalties from books, movies, or songs and also income that comes from real estate or business investments where you don’t actually have to be present to earn it. For example, Bill Gates is still making a residual income from Microsoft even though he isn’t working there anymore.