For example, if you are married with a single income and have two school-aged children, your consumption requirements may be different as compared to a person who is single. Thus, identifying your stage of life will help you to clearly assess how much resources you need to put into the source which can generate enough passive income to support you.

Don’t do vending machines as passive income. I thought it was passive but it’s way more than that. You have to work all the time. If you get a good account, you’ll be there twice a week. Want another job as a stable income? Good luck. What do you tell your boss when you have to go fix your machine because a dollar got stuck and is only open during normal business hours?

Speaking of credit cards, if you don't use them to rack up debt, you can instead use them to generate income streams for you -- via their cash-back or rewards programs. Some cards offer flat-rate cash-back percentages up to about 2%. Others target certain kinds of spending or certain retailers. If you spend a lot at Amazon.com, for example, you can get a card that rewards you with 5% cash back there -- which can really add up. (It's not hard to spend $250 per month at Amazon, which is $3,000 per year -- enough to earn $150 back.)
Humor: Old Spice’s viral video marketing campaign used humor to great effect. They had to. After all, there aren’t many other interesting ways to promote a deodorant / body wash. But they did it with a knowing smirk. The brand didn’t mind poking fun at itself. And it worked. The usage of humor introduced the brand to a younger, Internet-savvy audience.

I’ve built several businesses since 2008 using one or more of these models. I’ve been featured in magazines and articles across the globe, and since I started my journey I’ve generated over $5M in earnings from these businesses. All of my income and expenses for those businesses dating back to October 2008 have been tracked publicly on SPI.com. You can see 10 years of income reports here.
Loss leaders are high volume, high profile brands or products that are sold by retailers with the intention to attract customers into their premises, with the hope that those customers will end up buying other goods as well, once inside. Examples could be steeply discounted electronics, or consumer goods, or garments. A zero percent loan for cars is a loss leader example for the dealer. Descri
The reason to make use or virality, the ease in spreading and sharing, is however a double-edged sword. We cannot forget that in this type of campaign, a large part of the control falls into the hands of the users, and we risk the message being misinterpreted or parodied. On the other hand, a successful viral campaign can work miracles for your brand’s results.
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