No worries there. I will weigh the item with packaging and charge exact shipping cost - I have found that it is often cheaper to ship first class mail than media mail. I think media mail costs 2.57 while first class mail costs around 1.60. I'm not out to make any money, I just didn't really look into how much it would cost to ship yet and it depends whether I send to California or closer to my state... (its my first auction... I'll get better at this :-)