Start a bed and breakfast. If you live in a popular resort area or own a historic property, a B&B might be the perfect side hustle. Not only can you work at home with this career, but you’ll also score some tax write-offs in the process — although most innkeepers caution that the profession requires a lot of hard work and is more of an attractive lifestyle than a money-making pursuit.
Now, if you don’t know people who might want your coaching services, there are a number of online tools and communities that make it incredibly easy to find clients and teach, on just about any topic area you can think of. Community driven platforms like Savvy.is, Clarity.fm, and Coach.me provide you with a network of potential clients to interact with, as well an integrated payment solution.
Choose a business focus appropriate for your circumstances. If you are 14 and still in school, dog walking is more appropriate, for example, than if you are married with a child and 18 years old. Focus your initial energy on figuring out who your business will serve and how. Identify a problem or inconvenience that many people have and create a business idea based on solving this problem.[1] Think about what product or service you could offer. The fastest and most reliable of making a lot of money is to start your own business. Consider the following fast-growing business fields:
Build up a following on your Instagram account and you could quickly be making extra money online. Major brands, gear companies, and even startups are willing to shell out $500-$5,000+ per post to get in front of your audience. While it’s getting harder and harder to build a massive Instagram audience, if you already have a solid niche and are posting quality content regularly, with a few small tweaks you can make yourself an influencer. Check out this awesome article from Shopify on how to build and grow your Instagram following to get started.
Use the law of supply and demand to your advantage. Most of us are familiar with the law of supply and demand--the more there is of something, the cheaper it is; conversely, the rarer the product or service, the more expensive it is. However, other than when we get to a toy store before sunrise to get on line for the latest fad toy that kids can't get enough of, we don't really apply the law of supply and demand to our own lives--particularly our careers. For example, if you're aspiring to do something that many, many other people want to do (so much so that they do it for free, as a hobby) then it will be far more challenging for you to make money doing it. On the other hand, if you do something that most people don't want to do, or if you get very good at doing something most people don't do all that well, then you can make a whole lot more money. In other words, choose a career in pharmacy over photography.
Join a startup accelerator: Another great option is to apply to a startup accelerator like Y Combinator, 500 startups, or TechStars, where a group of investors will help coach you, connect you with potential partners, and provide startup cash in return for a small stake in your company. The competition is tough to get into these, so don’t rely on them as your only path forward.
You could also opt to use existing websites for making money. These include both active income and passive income methods. For example, you could sell some used items or invest in creating some digital designs that then can be sold on merchandise. Again, devote a sizable portion of your time to passive income so that you can slowly build up earnings that will arrive on autopilot without any extra added effort. 
Housing bubble-era mortgage loans were especially attractive to subprime borrowers with little demonstrable income or assets, and lenders were only too happy to accommodate them. Hedge funds employ tremendous borrowing, which is needed to achieve the superior returns needed to justify high fees for investors. Private equity funds also use heavy borrowing, typically loading the corporations they take private and clean up with heavy debt and using the proceeds to pay dividends to their investors.
Just the other day, I got a ride home from a tennis buddy who works at a hedge fund. He drives a common Ford Explorer and on our way back we started talking about real estate. He mentioned he and his wife are looking for a new house having recently relocated from Florida. He mentioned his house in Florida costs just under a million, but is nicer than so many $3-4 million dollar houses in San Francisco.  So then I suggested instead of spending $3-4 million on a house in San Francisco to perhaps rent for a while.
Recognize that time is money. This critical piece of advice is attributed to Benjamin Franklin, who was an accomplished American inventor, journalist, printer, diplomat, and statesman--the ultimate multitasker. Your ability to manage your time (and stop procrastinating) is a critical ingredient in your ability to make money. Whether you have a job or are self-employed, keep track of what you're spending your time on. Ask yourself "Which of these activities make the most money, and which of them are a waste of time?" Do more of the former and less of the latter, simple as that. When you're focusing on high-priority tasks, get the job done well, and get the job done fast. By working efficiently, you're giving your employer or clients more time, and they'll appreciate you for it. Remember that time is a limited resource that you're always investing. Will your investments pay off?
If you're running on fumes, financially speaking, but you have some money coming your way soon, consider pawning something of value to borrow fast cash. Of course, to get those items back you'll need to pay back the loan with interest. If you don't pay it back in time, that you'll lose the item. If it's really something that has a lot of intrinsic value to you, don't do it. But if it's something that doesn't, you can certainly consider it depending on your situation.
Holly told me she started writing content in 2011. At the time, she still worked a full-time job but created content online part-time to supplement her income. Over time, she was able to double and triple her rates until she could quit her full-time job to write. These days, she makes bank as a freelance writer and teaches others to do the same via her online course, Earn More Writing.