I opted for USPS Parcel Post ($11.57) for the 3 pound, 15 ounce box, along with Delivery Confirmation for $0.80. The website estimated its arrival in 7 days.

Here are the tracking results:

• Acceptance, April 07, 2010, 2:29 pm, TEMPLE CITY, CA 91780
• Arrival at Unit, April 09, 2010, 8:51 am, SHEPHERDSVILLE, KY 40165
• Delivered, April 09, 2010, 9:15 am, SHEPHERDSVILLE, KY 40165

It traveled 2,100 miles and arrived at its destination in 1 day, 18 hours, and 46 minutes.

In comparison, USPS Priority Mail would’ve been $15.30, or $3.73 more than Parcel Post.

My point? If you’re mailing something that isn’t time sensitive, you don’t need USPS Priority Mail.

Side note: USPS offers free Priority Mail supplies. But, is the difference saved – when using First Class Mail or Parcel Post – negated when buying your own supplies? I suppose you would save money if you’re reusing boxes. Keep that in mind.