How to buy 90% off products at Amazon.com easily

As described here, the way to buy 90% off products at Amazon.co.jp is also avaiable at Amazon.com. All we do for Amazon.com is to change .co.jp to .com in the URL.

For example, here is a URL to show 70%-100% blu-ray discs at Amazon.co.jp:
http://www.amazon.co.jp/gp/search/ref=sr_nr_p_8_3?rh=i%3Ablu-ray%2Cp_8%3A70-100&bbn=562002&ie=UTF8&qid=1251268354&rnid=388323011

After changing .co.jp to .com, we can see it at Amazon.com:
http://www.amazon.com/gp/search/ref=sr_nr_p_8_3?rh=i%3Ablu-ray%2Cp_8%3A70-100&bbn=562002&ie=UTF8&qid=1251268354&rnid=388323011

Amazon seems to use the same system globally!