I state CONUS to establish a shipping ceiling, which is included in my price.
Most out of country folks understand that, and offer to pay the extra fee. I don't mind shipping overseas, but it does add $20 to $30 ($30 to $40 total) depending on insurance and tracking.
Edit: Shipping overseas is easy - a simple form to fill out that takes maybe 3 minutes the first time. But only thru USPS. Prohibitive with FedEx or UPS.