Address Formatting for International Mailing?

linuxbaby asks: "Anyone have any advice or wisdom from experience about address formatting for international shipping? I'm starting to doubt the process of asking individual questions of 'name, company, address, city, state, postalcode, country' because of complaints or misunderstandings from places like Ireland (no postalcodes), Germany (postalcode goes before city), Japan and England (many lines of address info needed). Maybe the best approach is to just get the country as a option-select list of 2-character country codes, but leave the other lines wide open ('address1', 'address2', 'address3', 'address4') for the person to fill in as they see fit. The point here is not data mining, but shipping packages as accurately as possible, anywhere in the world. Thoughts?"