Well for all my American friends who feel that shipping cost are getting out of hand, try this on for size.
Today I needed to mail out a set of my Hella headlight water shields by Canada Post to an address in Canada. The package weighed less than 3 oz, but I guess size matters and it was only a small padded envelope. The cost was $22 Cdn. That of course includes "fuel surcharge" and tax. By contrast, and don't ask me why, it only cost a little over $16 Cdn to mail the same package to the US the last time I shipped a set. That too may have changed by now, but I hope not.
Now, I sell the parts for the least I can to cover my costs. I'm not in it to make money per se, but the cost of mail (I charge the exact, or as close as possible) could kill any chance I have of more orders. (See my ad in the "For Sale" section of the forum) I hope not, but its frustrating as hell that mail/shipping costs, dictate whether a person buys a product or not and personally, I don't blame them.
Still, any mail or shipping cost will usually be far cheaper overall, than a road trip to go pick up the product or parts.