You can sell your ebooks through Amazon's Kindle program or Apple's iTunes Connect, which gives you access to a large majority of the digital-book reading market and the barriers for entry are incredibly low. You don't need to invest lots of money to make this happen, but you do need to invest lots of time, not only in writing the ebooks, but in marketing them as well.
If you start getting too big for EBay or decide you want to try a different flavor, Amazon has a marketplace as well. I prefer using Amazon because I can depend on their shipping, have a Prime account, and trust their reviews (overall, not usually singularly, although occasionally that as well). Learn more about Amazon’s marketplace by clicking on this Lifehack, and delve into the marketplace.
Like talking to people and helping walk them through problems? You can bring in extra income as a contract customer support superstar for companies all over the world. Due to the 24/7 nature of online businesses, companies are looking for people in different time zones to help deal with issues that their users are having. Better yet, if you have experience in service or retail you’ll be perfectly suited. Check out indeed or the other remote job boards I listed earlier to find opportunities.
Telecommuting gained ground in the United States in 1996 after "Clean Air Act amendments were adopted with the expectation of reducing carbon dioxide and ground-level ozone levels by 25 percent." The act required companies with over 100 employees to encourage car pools, public transportation, shortened work weeks, and telecommuting. In 2004, an appropriations bill was enacted by Congress to encourage telecommuting for certain Federal agencies. The bill threatened to withhold money from agencies that failed to provide telecommuting options to all eligible employees.
I think what you’re asking is how you can make extra money to pay your real estate taxes. If that’s the case, it depends on your current financial situation, the amount of your estate taxes, your skills, and more. If you visit the “Make Money” section of our website, we have a few articles with different ideas that may be helpful for your situation: https://www.dollarsprout.com/category/make-money/