We have always had our RM parcels collected but we have decided to drop them off at the PO as it is more convenient. They have told us to leave our sacks and separate parcels in their hatch. But how do we get proof that we have handed them over - relevant to claiming compensation in the case of Signed For and Special Delivery? When they were collected from our premises, we filled in the details in an orange or silver book which the postman signed. But now there doesn't seem to be any mechanism for proving that you handed them in. What do other people do?