You can absolutely use websites like eBay and Etsy! Try listing some items and making a professional Facebook page for yourself with a link to your eBay/Etsy pages. Then share the information with friends and family and get them to spread the word to people they know. Also, make sure that you have detailed descriptions and multiple pictures with anything you list online. This will help your listing show up in keyword searches, and you are more likely to sell something if the buyer knows a lot about what they are looking at.
If you're interested in online marketing, setup email software and create a lead magnet that you can use in your sales funnel. Then, build up that list. It's often said that you can expect to earn about $1 per subscriber per month. If you have a list of 10,000 subscribers, that means you can earn roughly around $10,000 per month. You will need to deliver value and not pitch them on every email, but it is a very achievable goal in a short period.
I saw a webinar a few years ago with ClickBank University and to tell you the truth I was very impressed. But like you said what I realized was that they are really expensive. Nevertheless, many members have said how ClickBank has made them some really good money. I agree with you, the Wealthy Affiliate University platform has the best online training by far.
For example, if you buy a $100 suit… perhaps you could rent it out for $25 for the night/weekend and someone locally is interested in just a cheap rental (because they don’t need to own a suit for the one or two times per year they wear one). After four weekends of renting the suit, it’s paid for itself. Now, whenever it’s rented out—you’re profiting for the remaining life of the suit.
Strong copy and clear call to actions: If they have a written sales page you’ll likely find that it’s very convincing and keeps pulling you in to read more. They’re often story-driven as well. The buy now button will be unmissable and the whole page will be directing your attention to it to complete the purchase. It leaves no doubt in the visitor’s mind on what should be done next.
It can take time to build up your personal freelance business. Yet, there is more demand than ever for freelancers. So, if you want to kick start making money online through freelancing you can join one of the top freelance networks, such as Flexjobs, SolidGigs, Contena, Upwork, Fiverr, or PeoplePerHour. Sign up, build your profile, upload some samples of your work and start making extra money by doing small freelance jobs.