You will use this one the most!
1. Go into the stamps.com account, then click the "MAIL" tab on the upper left corner:
2. You will see this:
3. Make sure that the information you see on step 2 is identical to what your screen will look like.
4. Enter the address you want to ship to.
5. For email tracking, enter the email of who needs the tracking number.
6. Make sure the Carrier is USPS and the Service is PM Flat Rate Envelope (3 Days) and the price is $7.75
7. Print the label- cut the edges off since you don't want all that excess paper and then tape it onto the box on the envelope that has the "TO:" & "FROM".
8. Either put it in the USPS box by the front desk and the mail carrier will come get it the next morning, OR drop it off at the post office around the corner.