how do i buy stamps from my carrier?
I would agree with the first answer given. You can get them online as well. If you want them the day you need them, you can go to your nearest post office, some grocery stores, and UPS stores which used to be Mailboxes. For as long as I have been living, most mailmen have never sold stamps. If I were you, find some place you can get to where you live that is close that sells them, and always make that your primary place. That way, come rain or shine, you can go there.