This mod will allow you to specify a zone to show your products in!
You primeraly sell gift-items. You sell these to the whole world, or atleast your whole country.
But then you also sell some baked goods... You would not want to send a cake half way around the world, would you?
Then you can specify a zone for your baked goods! So that only customers from your zone is able to see and buy those items!
http://www.opencart.com/index.php?route ... ion_id=798