We have recently gotten a lot of international customers and need to find a source for the clear shipping sleeves like the USPS, UPS & others use for paperwork so we can include the Customs Forms easily. Any suggestions on a supplier for these or the best method to prepare a shipment for drop off without using one?
If you are dropping off at the post office, just ask the clerk for some next time you go in. They are free. You can also try the post office website at shop.usps.com
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