I think you need to get a scale. You can't possibly determine what to charge for an item if you don't know the weight. Heh, I goofed selling a book on Half.com because even though it was a paperback book, it was HEAVY! Over a pound, which I had not realized. So it cost me about $.75 more than they reimburse for paperbacks. Which didn't leave me much after they took their commission.
