One of the best ways to earn money as an affiliate is to target big-ticket items on Amazon. The commissions for selling physical products on Amazon are not as high as for digital products, because you have to account for margins. In addition, selling inexpensive items can be difficult because the commission is so small. For example, if you sell a $20 product, you\ll only earn $20 while selling a $2000 product will earn you $200. The higher the price, the better, because those items are more likely to sell online.