Internationalisation is going to be tough when you have to implement all the different data representations (numbers, currencies, dates, collations and much more) by yourself. Fear not, because with the International Components for Unicode, or ICU for short, every developer has access to the different formats and information every developer needs. For C, C++, Java... and with the Intl extension PHP too. This talk shows how you can keep your Projects or Shops ready for every country.