Prepaid Overnight Envelope Usps. USPS Priority Mail Service levels are equal to or better than any of the competition. Priority Mail Express delivers overnight to most major U.
When I sent mine in I used USPS overnight-prepaid envelope with tracking number. You can drop off a prepaid package at any kiosk but as stated above they might not empty it till the morning. All the customer has to do is drop the pre-addressed, postage-paid envelope into the mail, and the mail is delivered to the company.
The service provides a Flat Rate Envelope option which is great for documents needing overnight.
Envelope printing solutions from Rapid Envelopes.
S USPS flat rate envelope, a padded envelope is used to secure the parcel with extra safety. Chances are, I could fit it in a legal size express envelope. Prepaid envelopes, also called "business reply mail," are tools businesses use to encourage customers to return information, like credit card applications.