My client wishes to make all products flat-rate shipping US only, and still use live rates for International Shipping. He uses USPS and UPS. I think for USPS I would simply disable Domestic and enter flat-rate price in each product category. Is that correct? However, UPS is a bit confusing. The checkbox is for 'Domestic and International Shipping'. There doesn't appear to be a way to disable just Domestic Shipping?