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Sending Mail

USPS Priority Mail Boxes: Every Free Size and the One CatchUSPS gives away two entirely different families of priority mail boxes. Most shippers only know about one of…What Is USPS Ground Advantage? 2026 GuideUSPS retired two entire mail classes in 2023 and replaced them with one. USPS Ground Advantage is what…How Long Does Priority Mail Take? 2026 Timing GuidePriority Mail publishes 2 to 3 business days, but that number comes from a zone chart, not a…Priority Mail Flat Rate: 2026 Box Prices and SizesA 40 pound box and a 4 pound box cost exactly the same under Priority Mail flat rate…Media Mail: What Qualifies, Cost, and Inspection RulesMedia Mail is the cheapest way to ship a book. USPS also reserves the right to open your…Priority Mail Express: Cost, Speed, and GuaranteeOnly one USPS service comes with an actual money back guarantee. Priority Mail Express is that service, and…First-Class Mail: 2026 Prices, Sizes, and SpeedFirst class mail covers more than letters and postcards. Small packages under 13 ounces qualify too, which surprises…Priority Mail: 2026 Prices, Speed, and Full ComparisonPriority Mail is not guaranteed, despite what most people assume. It ships fast and reliably. USPS just attaches…Certified Mail Return Receipt: Green Card vs ElectronicCertified mail alone proves you sent a letter and that someone signed for it. It does not, by…How Long Does Certified Mail Take to Arrive?Certified mail takes exactly as long as the mail class underneath it. The certified sticker adds proof, not…

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