Another one of the highest paying and most popular dating affiliate programs is eHarmony, which is based on the actual earnings that can be made from each referred sale. Up to $188 can be made from a single sale. In general, the members at eHarmony are typically looking to find serious long term relationships, so many of them are willing to pay extra to find similar people.
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.