...And if you're going through Ebay - don't rely one little bit on USPS's insurance. The claims process is ridiculously one-sided in USPS's favor. Ideally, since the buyer (receiver of package) has the damaged/destroyed package or postal slip, they are responsible for initiating the claims process. But since you're an Ebay seller, the buyer is just going to contact you or outright open a case against you without describing the issue adequately. USPS won't work with you without the buyer/receiver initiating the case, and Ebay is so heavily biased in favor of the buyer that they will basically tell you to shut up and refund the money and move on (Ebay customer service is completely outsourced and off-shored - they are incapable of following anything that is off-script).
That said I still use Ebay heavily as a seller - I just factor in loss of shipment into the cost of doing business.