shipping express mail. vs. Priority, can you use the same packaging?

i know they have express envelopes, but never seen express boxes. Can you just use the Priority box and they will slap a Express label on it? or is it best to use a plain box. thanks.
0
Comments
<< <i>i know they have express envelopes, but never seen express boxes. Can you just use the Priority box and they will slap a Express label on it? or is it best to use a plain box. thanks. >>
No, at least not at my post office. They are different services and therefore require different boxes.
You can have a plain box and use either service, but can not (in my experience) switch boxes and services.