You can buy mailers anywhere you please. The only thing you can't buy elsewhere are specific packaging like Flat Rate boxes. You can however visit the post office and get them free and then take them home to package your item.
I want to start selling panties but I feel embarrassed going to the post office with them.
What other options do I have?
Can I go buy an envelope with padding from target and then go to the post office with it already sealed?
I don't know how to ship stuff
