Instruct: Classify the given review as either positive or negative.
Query: It'll save you time and money!

This little gem will save you from waiting in line at the USPS counter or at the APC, and from wasting the gas to get there! I am now able to ascertain accurate first class mail weight for shipping my eBay sold items, and for shipping stuff to family/friends. Forget overpaying with flat rate shipping or the overpriced carriers when you can ship first class mail if the item is 13oz or less.. I am impressed to find first class mail is almost always faster than the parcel carriers, and is not far behind priority mail if not as-fast! Drop the prepaid package in your neighborhood blue post office box, or hand to your mail carrier. I am only a casual eBay seller, and between a handful of transactions and some personal mailing, this thing has paid for itself in a few weeks already!