You have four simple options:

1. Leave it in your mailbox or give it to your mail carrier.
2. Schedule a free pickup at usps.com.
3. Drop it in any USPS collection box. Note: increasingly USPS is renovating their collection boxes to be letter-only. Your best bet is Free at-home pickup or dropping it at a USPS store (or UPS location if they accept USPS packages, most of them do).
4. Take it to your nearest post office.

Curtsy's labels do not allow the use of USPS-provided 'Flat Rate' Priority Mail boxes or envelopes. USPS has been cracking down on this lately and has started charging surcharges for improper use of their Flat Rate products.

No printer? No problem. We offer a QR code option where you can print the label at the post office. New QR codes can take approximately one to two hours to become scannable at USPS. If the Post Office says a newly generated QR code has not been paid for, wait one to two hours and try the same code again. If it still does not work, do not buy additional postage—contact Curtsy Support.