I always buy apples iphones (mostly AT&T) and sometimes Verizon if I get an awesome deal, from craigslist. I would then unlock it and sell on eBay  and craigslist. I stopped selling on ebay after sometimes because I was paying a lot of money listing the item on ebay, ebay fees and paypal fees. Even then I was making decent amount of money selling on craigslist. There is still profit but not as much as I was making before because the unlock code prices went up. 

Is there anybody who sells other items for profit? If so, what kind of items do you guys sell??