Great list! I have another to consider that I personally have 35+ years experience providing. Clean up litter outside commercial properties on foot using inexpensive hand tools. It’s almost as easy to do as going for a walk! I started doing this as a side gig in 1981 and soon grew it into a profitable full-time business. I share my experience in my book, Cleanlots.

Research individual companies in your desired niche: If possible, it’s always better to become an affiliate directly with a company (if they have an internal affiliate program), as no one else will be dipping into your commission rate. This is the preferred route for most of the prominent affiliate marketers, including Pat Flynn. Unfortunately, it’s also the most work, as you’ll have to do the research yourself to see who offers programs (they’re usually listed in the website footer).


Know your local lore? Big Onion Walking Tours (212-209-3370, bigonion.com) offers jaunts through more than 30 Manhattan and Brooklyn enclaves and is looking for new guides, who get $50 and up per hour. "But we have extremely high standards—all our guides must have advanced degrees in history and be licensed [by the Department of Consumer Affairs]," says Seth Kamil, Big Onion's president. "And it takes four to eight weeks of pretty serious training to learn the Big Onion method." 
In fact, AirBnB recently swallowed up luxury vacation rental provider, Luxury Retreats, and other consolidations in the marketplace have happened with leading sites like InvitedHome's acquisition of PPG rentals and Seasoned Dreams' platforms, and Expedia's $3.9 billion acquisition of another vacation rental giant, HomeAway. The market is booming and the time is ripe for entry, no matter how big or small your home or condo might be. 
Or you can take dog walking a step further and get paid to take a dog in while the owner is away! Have you ever checked to see what it costs to board a pet? Those places are not cheap! Do some research and charge 10 – 20% less. Post your ads on Craigslist or around town. But don't expect people to just leave their loved one with a stranger. Make sure you offer your references and that you have all their necessary information if Fido gets injured or sick. Rover can help you here, too – Become a Pet Sitter.
With drop shipping, you’re effectively partnering with a manufacturer or wholesaler to sell their products. This way, you don’t pay upfront costs to buy inventory, aren’t sitting on unsold items taking up expensive warehouse space, and don’t have to deal with shipping the products yourself. You simply create your site, fill it with drop shippable products, and drive in customers, with almost everything else done for you.
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?
Could you make an extra $200 per month? Sure. How about an extra $1000 per month? How would that change your life? To most, it would make a monumental difference. But what if  we were talking thousands more per month or even tens of thousands more? How would that alter the trajectory of your life? Clearly, you can make money on the internet. You just have to decide how much of your time it's worth.
It’s kind of like going the tutoring route, except you’re teaching English with a company like VIPKid (a big favorite of fans in our Ramsey Baby Steps Community on Facebook). Now if the word teach makes you a little nervous, don’t worry. They’ll handle all the lesson plans and grading for you. But you do need to have an interest in helping others learn and the ability to guide a class online. Getting paid while helping others? This one truly is a win-win!

Take advantage of tax laws if you're self-employed. Money saved on taxes is still money saved. You may be able to deduct many of your business expenses (use of your home, use of your car, office supplies, etc.) if you keep good records. You may also qualify for tax breaks, such as deducting your health insurance premiums on your tax return. These laws are in place to encourage commerce and business growth, so don't neglect their benefits especially if you want to make money.
I have a personal blog that I use for journaling. I became good enough that I opened my own business as a social media consultant. I’m now making a decent amount of extra money. I am also a photographer with a lot of graphics program experience, so I make a little more by doing graphic design, photography, and even digital enhancement. You don’t have to be the best at something in order for it to be profitable; you just have to put in the work and be better or cheaper than other people out there. However, it IS work.
If you don’t mind doing other people’s chores, then TaskRabbit is a great option for making money online. Earn extra income by walking your neighbor’s dog or mowing Mr. Smith’s lawn. It might seem like not the most lucrative option, but the top taskers reportedly earn as much as $7000 a month, making this a full-time way to make money online for some.
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.
Listing an item on eBay takes just a few minutes, but some people can't be bothered. Offer to sell their stuff for 10 percent of the profit. One publicist we know makes $100 a month selling her coworkers' designer clothes, bags and electronics. Her best tip—if something doesn't sell, repost it in a week. Even if it got no bids the first time around, it may get ten the second time.
You'll have to leave your house for this one, but hospitality consulting firms like Coyle rely on secret shoppers to evaluate their clients' services. Sign up to be an evaluator and you could get paid to receive spa treatments, dine at restaurants or stay at a hotel. There are lots of opportunities in other fields, too, ranging from entertainment (hello, amusement parks!) to automobiles. However, watch out for scams; check the MSPA for a list of legitimate mystery shopping companies. Earning potential: About $10 per hour
OneOpinion— signing up is completely free, as it should be. This survey site, like many others, works on a points system: 1,000 points = $1. Once you reach 25,000 ($25), you can choose to cash out via PayPal or an Amazon gift card. OneOpinion also offers product testing, which means you have the opportunity to test new products at home before they hit the market.
If you already own an up-to-date computer and have a landline phone, you could start your own home-based call center without much investment in additional home office equipment. Many companies hire people to work from home as telephone customer service representatives, sales reps, and technical support agents. Hours and pay rates vary from company to company. Many of these companies are looking for part-time, evening workers, so virtual call center work can be perfect for moonlighting from home.
 @Philip Taylor So by what you’re saying, I can be an unaccredited doctor or surgeon for someone (for example) but do it at a much lower rate than the accredited doctors and surgeons. Since I know what a scalpel is and I wear rubber gloves, I’m a doctor. So, I don’t have to have to respect the profession of medical science at all since I think I know what I’m doing and just go for it.
At Book Off (49 W 45th St between Fifth and Sixth Aves; 212-685-1410), you'll get between 10 and $1.50 for your fiction and nonfiction titles. The Strand Book Store (828 Broadway at 12th St; 212-473-1452, strandbooks.com), meanwhile, offers up to one-fourth of the Strand's selling price, depending on how well preserved the tome is, how likely it is to sell and what the shop's current inventory is like. "I'd love to have a first-edition copy of James Joyce's Ulysses," says Strand co-owner Fred Bass. "If it was in good condition, you could get somewhere in the thousands of dollars." A newish copy of The Secret, meanwhile, will fetch up to $4.
Get paid to shop and share your experience. In short, stores or restaurants hire people to evaluate their services to ensure quality. Obviously, social media can impact a brand when a customer isn’t taken care of well. Mystery shoppers help prevent this from happening. As a mystery shopper, you’re compensated to provide impartial feedback about products and services. Your feedback may very well prevent the next social media rant. We’ve devoted an entire article to Mystery Shopping that you can read about here.
If you have a college degree or you're working on getting one, you may qualify to work as an online tutor. Typically, online tutors work for internet-based companies that offer help within a variety of subject areas to students of all ages. However, some websites simply offer ways for established tutors to connect to students online (and then take a cut of the fees you charge). Hours are flexible, and teaching experience may or may not be required. Do some research to figure out which online tutoring jobs might be a good fit for you. 
Once you have decided what type of product you are going to sell, you need to decide where to sell them. Selling merchandise on Amazon or eBay aren’t your only options. Creating your own eCommerce store is another way to promote your products and generate sales. Once you have decided what you are going to sell, whether it is white labeled products, your own designs, or other people’s merchandise, you can set up an eCommerce website to display these products.

6. Rent out your room on Airbnb. Airbnb.com is an online marketplace where people buy and sell the space they own. Some people rent out their vacation homes, some rent out their floor and an air mattress, and some rent out the treehouse in their backyard. (Seriously.) If you have space in a popular area, then you can easily create your own hotel of sorts.
If you want to clear some space out in your house and have a big stack of books you’ve been holding onto for too long, you can make money selling your books and textbooks online. Stores like Half Priced Books and others will give you cents on the dollar for each of your current books while you can check what your book is worth by simply entering the ISBN number on Book Scouter.
Buy underpriced used books. Outfit a phone with an ISBN reading app, scan the ISBN numbers of books at used bookstores and thrift shops, and compare the asking prices with what the books are selling for on a site like Amazon. Whenever you get a good hit (which won’t be often but, since the process is fast, won’t take long, either), buy the book and resell it online. Be discreet about this, as the store managers probably won’t like what you’re doing.
Cryptocurrency or digital currency is the next big thing in currency trading. It’s a digital asset that is used as a method to pay for things, that isn’t run by a government or institution. Bitcoin is the most well known digital currency and was trading at $200 per Bitcoin back in 2013. Now it is worth over $17k and is expected to be worth well over $1m in 2022.
Equally, you can charge businesses to ‘claim’ their listing, a method used by many large directory sites like Google Business and Yelp. This involves companies paying to upgrade their listing and adding information such as their web address, social media links, images, and more. Other revenue streams include charging for ad space, adding affiliate links and even charging for services and products on your directory site.
Make money on YouTube. People who love the spotlight and have other online hustles should consider creating their own YouTube channel. If you’re interested — and interesting — you can use the platform to market affiliate products, sell products you create yourself, or receive ad revenue for your informal tutorials or entertaining videos. Once you get the ball rolling, YouTube offers a partner program that can help you monetize your business further.
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