I used to sell my books in lots, but have had far more luck selling as single items.... I am thinking about only charging the c&s price but I also have to factor in that I am paying for the satchels and other wrapping for the books. For such low cost items it is difficult to find that balance between making sure the buyer is happy with the price aswell as leaving a little there for me in the end.

My main gripe is why complain about postage costs when you know 100% what your being charged before buying the product?