ConroeJoe noted > 2. ...I've determined that a Priority Mail > stamp means delivery within 2-6 days. The Wall Street Journal did a test about two years ago. They mailed letters and packages from several post offices all over the country to several destinations using irst-class and Priority Mail. The first-class letters and packages arrived well before the Priority Mail in almost every case. First-class typically took 3 days all the way across the country and 1 day if close to the originating post office. So, if your package meets 1st class criteria, always send it 1st class rather than Priority Mail. I can't recall the exact criteria but they include being under a certain weight. You can find out at the USPS Web site. Leo