Okay so I made my first sale of a used CD on Amazon.com yesterday and I think after shipping I only made a $2.00 profit on it. Which isn't bad but I think I need to find a better way to package these things for cheap so that I don't blow all my profits on shipping. I mean seriously how do those folks selling used cd's for under a buck make any money even after the cost of shipping you still gotta pay for some way to package these things so they won't be destroyed in transit, right!?!? 
Also, on amazon, when you make a sale, they give you $1.87 for shipping if the buyer requests first class shipping or $3.25 if they request priority mail so you arent out anything for shipping