Sell your old valuable items. When you list your items try to be as detailed as you can because this makes buyers see that you are reliable and have nothing to hide in turn getting them bid more for the items you are selling. Make sure you don't over-exagerate listings.
E-Bay is a great way to make money on the side or even full time. Calculate your shipping correctly and price items with a benefit to you and the customer.
You either need to find an inexpensive product that you can sell a lot of or a valuable product that you can sell a few of at a time and set up with a drop shipper that carries the product. You sell it and they ship it.
To make money you have to sell items on eBay. It possible to make a lot of money with things that are older and not very common. You can check your grandmothers house for thing she does not need anymore or the fleemarket.
