Comment by sourcex

I profit from arbitrage by buying things for people on Amazon via purse.io. I buy discounted gift cards, and order for others they pay me in bitcoin. Net margin is around avg. 10%. I have fulfilled around $8k, netting me $800 easily. However, there are some risks such as amazon taking away your gift card or locking the account. It isn't for everyone, but can be a good side income occasionally