You can always make money by selling things you no longer use.
I found two apps that make selling and buying your stuff easy.
EBay and Craigslist often come to mind when selling, but there are some disadvantages. EBay charges you fees to sell and Craigslist is not as user friendly when it comes to communicating with the buyer or seller.
OfferUp and Close5 are very similar in use. In order to buy or sell, you must register first.
To sell your items, simply take a picture of the item you want to sell, add a brief description and then your price and that’s it! Now your item is listed. If anyone is interested, they will send you an offer within the app.
You can accept or decline. If you accept, you can text the buyer within the app. No need to exchange phone numbers.
OfferUp and Close5 are mainly focused on local buying and selling. So you will need to arrange exchange of money and product in person.
Both apps are free to use and there are no fees to buy or sell.