The document provides various ideas to reduce shipping costs, including using FedEx prepaid stamps, USPS flat rate boxes, free USPS packaging, carrier packaging labs, negotiating fuel surcharges and supplemental charges, converting air to ground shipments, auditing bills, and leveraging parcel consolidators for residential deliveries. It also recommends defining package characteristics, using third-party insurers instead of carrier insurance, and pre-purchasing options to avoid additional fees.