Unfortunately, I have not been able to find a USPS Web site which states this clearly, and so for the moment will refer to this Web page by another source (which has links to USPS Web pages which are no longer active ).
Create a USPS.com (registered trademark symbol) account to print shipping labels, request a Carrier Pickup, buy stamps, shop, plus much more.
Send mail and packages with USPS online shipping options. Choose your mail service by delivery speed, cost, and additional services like tracking and insurance.
Find USPS locations like Post Offices, collection boxes, and kiosks so you can send packages, mail letters, buy stamps, apply for passports, get redeliveries, and more.
Track USPS package deliveries, get tracking text and email notifications, forward mail, change your address, and learn about setting up PO boxes or home mailboxes.
Informed Delivery is a free service from USPS that shows you preview images of incoming mail, plus status updates about your incoming and outbound packages. Get notifications in a morning Daily Digest email, or at any time from the dashboard using your smartphone, computer, or USPS Mobile app.
I want to try The Paarthurnax Dilemma but it requires ussep. Also, can the restoration glitch still be used with ussep installed?
Does USSEP Affect Glitch Restoration? - Skyrim SE - Nexus Mods Forums
That visual glitch is mainly caused by vram issues when your gpu is under a lot of stress; the gpu is struggling to render everything that the game engine is telling it to, hence your noticing it when you move/rotate the camera.
Dialog Glitch / Save Corruption - Skyrim SE - Nexus Mods Forums
Track all your packages from one place. Real-time tracking service for FedEx, UPS, DHL, USPS, Royal Mail and more package companies.