Since I am not one to sit, and do nothing about the US post office, I went back to talk to the clerk, and figure out whyI paid double of what I should have. When I ordered the padded envelopes, I ordered Flat rate express instead of flat rate priority. Flat rate priority are $5.30 to mail, and the others go by the weight. It make no sense that the others go by the weoght. Anyway I ordered the right ones.. Ughhh