You can open a store without the burden of managing inventory. One of the ways in which you can use Amazon affiliate links is to populate your online store with third-party products. This spares you from having to produce, store, or even manage inventory. That’s all handled by the manufacturers. You only need to worry about maintaining your online store.
Hunt for under-priced used books that you can sell online. Download an app that reads ISBN numbers so you can scan the barcodes on books. This will pull up the book’s current price on Amazon so you can see if it’s worth trying to resell it. Then, visit used book stores, thrift stores, and garage sales to look for high value books. Post the books for sale online using sites like Amazon or Ebay.
It’s a great way to make passive income. Of course, when I say “passive”, this doesn’t account for the time needed to spend building or maintaining your WordPress site. However, in terms of having to promote these affiliate links, you can put in as much or as little work as you want to drive traffic to them. This obviously makes this a great option for a passive income stream if you’re not in the business of e-commerce.
People are always looking to have their cars washed and detailed. You could be a mobile car washer and detailer without having a permanent location. Reach out to people you know or make some flyers and put it in your neighbors' mailboxes. If you want to get serious about it, prop up a one-page website or give out business cards. You can make money quickly doing this.
27. Sponsored/paid posts – Many blogs publish sponsored and paid posts. Sponsored posts are basically just posts about a specific brand, product or service. A company will pay you to publish an article about it. It’s similar with other paid posts as well. Your basically selling the spot for the article on your site. If you decide to take this route, you’ll want to build your traffic before you will get many offers.
Find a profitable niche. Starting with your interests, write down as many niche ideas as you can. Think about topics people might search online. Ideas include passions (like surfing or body building), fears (like spiders or speaking in front of crowds) and problems (like getting out of debt). Do keyword research to see it others are interested in the topic. Find out if a domain name is available that matches the keyword 100 percent. 
Once you’ve set up your account, do note that Amazon requires you to use product links and generate income from at least three of them within 180 days. If you fail to do so within that time, they will close your account. If you are able to satisfy that requirement, Amazon will review your account as well as your usage of affiliate links once the first sale is complete.
In 1994, Tobin launched a beta version of PC Flowers & Gifts on the Internet in cooperation with IBM, who owned half of Prodigy. By 1995 PC Flowers & Gifts had launched a commercial version of the website and had 2,600 affiliate marketing partners on the World Wide Web. Tobin applied for a patent on tracking and affiliate marketing on January 22, 1996, and was issued U.S. Patent number 6,141,666 on Oct 31, 2000. Tobin also received Japanese Patent number 4021941 on Oct 5, 2007, and U.S. Patent number 7,505,913 on Mar 17, 2009, for affiliate marketing and tracking. In July 1998 PC Flowers and Gifts merged with Fingerhut and Federated Department Stores.
Paint friends’ nails for a small fee if you have a steady hand. All you need are a few pretty polishes and a little creativity to start your own pop-up nail studio. Charge extra for fancy designs, glitter, or stick-on jewels. Offer a discount if they get a manicure and a pedicure. For example, if a manicure is $5 and a pedicure is $6, make a mani-pedi $10 for a $1 savings to encourage people to spend more.
Research other listings in your city on AirBnB and see what the going rate is for a place like yours. You could also just rent out a private room as well or even a bed in a shared room. In fact, that's how AirBnB got its start. However, you might find it hard in the beginning without reviews, but as long as you take really good care of your guests and provide a lot of value, the reviews will eventually come rolling in.
You can build greater trust with visitors. When affiliate links are used properly, you’ll build even more trust with visitors. This means always directing them to Amazon products that are relevant to the topic at hand. Conversely, any attempts to deceive by pushing them to unrelated links or to untrustworthy products could hurt trust (and get you banned by Amazon), so be careful.
Regardless if you need to earn some fast cash or we're just talking about making money in the grand scheme of things, there's an important psychology that needs to be mentioned before getting into the strategies. If you study Freud's model of the mind, you'll discover the Psychic Apparatus. It's the three-part construct in your mind that controls all of your behavior.
So, now that you know everything there is to know about how to add Amazon affiliate links to WordPress, what will you do with this information? Just save a little money on Amazon? Will you start out small and embed promotional product links into your blog content? Will you be adventurous and launch your own Amazon affiliate store? Or are you concerned about the use of too many affiliate links affecting site speed?