
Can extra small padded mailers be used as regular mail in a letterbox instead of parcel?
I know someone who has been buying these for like $2 per mailer at the post office and the worker stamps it? I'm not entirely sure what the stamp says though but it's then just sent in a street posting box like a normal letter and it arrives? No tracking or anything, it seems to get sent like an ordinary untracked letter. Does anyone know anything more about this? I want to try it but am unsure of whether this actually works or not. It's not for anything heavy weight, just trading cards and would prefer the extra protection from padding without needing to pay $10 in postage.