USPS First class and Priority Mail

USPS First Class
The First Class Mail is the most popular and economical way to send items through USPS. Most shipments are delivered in one to three business days

USPS Priority Mail
The US Postal Service Priority Mail is a quick yet economical way to mail packages under 70 pounds within the United States. You can ship items across the country and have them arrive in one to three days to most locations. Unlike other services, USPS doesn’t add surcharges for residential delivery, fuel, Saturday delivery or delivery to out-of-the-way places.