I shouldn't need to say this, but apparently I need to say this: Yelling at your barista will not make the postal service deliver first class mail any faster. When you put a stamp on an envelope and drop it in a mailbox, you don't get a tracking number that can be used to get a delivery estimate and yelling at your barista will not change that fact. If you are unsatisfied with the quality of mail service, do not direct your outrage at your barista. Take it up with your congress peeps.