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.
Avoid purchases that are likely to depreciate rapidly. Spending $50,000 on a car is sometimes considered a waste because it's likely that it won't be worth half that much in five years, regardless of how much work you put into it. As soon as you drive a new car off the lot, it depreciates about 20%-25% in value and continues to do so each year you own it.  That makes buying a car a very important financial decision.
Take the phrase “one person’s trash is another person’s treasure” to heart by purging your closet of clothes that you don’t wear anymore. You’ll have the best luck selling items that are on trend, so consider purging items that are still in style, but you don’t wear anymore. Head to a local thrift shop or consignment shop to see how much your clothes are worth!
Create a killer course experience: With your course validated and in the works, you need to figure out how people will take it. Most course creators choose to host their courses from their own websites. This way, they get all the value of bringing customers back to their site on a regular basis. I host my own courses from a subdomain on my own site so I can easily add more. The course experience is incredibly important as well. And after trying most of the solutions, I highly recommend Teachable—an online platform designed specifically for courses.
If you love kids, sign up for Care.com or SitterCity to spend a few hours a week babysitting. These websites verify both babysitters and those seeking sitters with background checks, so you can ensure you're conversing with a reliable source. Babysitting rates vary based on years of experience, number of children, and hours per week. According to ZipRecruiter, the average hourly rate for a babysitter is $28. Use Care.com's calculator to plug in your experience and find out how much your should be making an hour as a babysitter.