Now that Stamps.com sells USPS international first class postage I use it to ship all my items around the world. I love the fact that it imports information directly from paypal, lets you create shipping labels with quickbooks, and shows the status of the shipment without having to individually click each shipment.
In addition, you can easily print a scan form that is used at the post office to show the items were accepted to at the post office. (No more having to explain to the customer that the item was dropped off but never scanned – no more messages with delivery confirmation saying that the post office was only electronically notified of a shipment.)
Before Stamps.com I was using Endicia.com. But I find with the importing process reducing my time preparing shipping its a much better deal.
Now you can get $45 in free postage plus some other incentives by signing up. Please use the link below so I get credit for your referral.