We charge only actual shipping costs, as determined by the carrier. Although our shopping cart displays the charge as 'shipping and handling' we don't charge a handling fee, nor do we tack any other charge onto the cost of shipping. If you pay more than your actual shipping cost at checkout (which can happen due to necessary rounding in weight estimates or because of combining multiple orders into a single package) we will refund the amount of the overpayment at the time your order is shipped.