Secrets of the post office (The Courier News)

Every time I dropped a letter into a mailbox (usually a bill payment that had to get there fast, or my interest rate would shoot up to 33 percent), questions lingered. Would the letter get there just as fast if I mail it at the corner “blue box” as it would if I mailed it at the post office? Would a letter mailed in the little Hampshire post office arrive as soon as one mailed in downtown Elgin? …

More: continued here