how to ship overnight refers to the process of sending packages via expedited shipping to ensure delivery by the next business day. Many carriers, including USPS, UPS, and FedEx, offer overnight shipping services for urgent packages. To ship overnight, customers need to select the appropriate shipping method, such as USPS Priority Mail Express or UPS Next Day Air, at the time of purchase. Additionally, it’s essential to meet the carrier’s cutoff time for overnight delivery and ensure that the package is properly packed and labeled for quick processing.