I ship all my soap flat rate USPS. Filling it out online at usps.com gives you conformation for free. The boxes are free to your door, they have to pick up the boxes at your door, you can do all your shipping online. 36 bars of mine fit in the $10 flat rate box and 50 in the xlarge $13...that's 30 pounds of soap, no way can you ship 30 pounds of anything for $13 with any other carrier. Vicki
I think international rates are higher on the flat rate though. I still think flat rate would be the best way to go. I don't ship out of country right now. I did a shipment to Canada once and it was too much of a hassle to fill out forms so now it's just not worth it to me.
I shipped an order to Canada the other day, didn't have to fill out any forms at all. And since it was under 4 pounds it only cost me $3.00 for standard flat rate! Boy was I pleasantly surprised!!