Young police officers with families often have difficulties finding affordable holiday accommodation on internet booking platforms, but for around 20 Euros per night, it is possible to book a fully-equipped apartment for the entire family in the centre of Paris, Timişoara or Berlin. It is not a secret: all you need to do is look on the IPA website at www.ipa-international.org/IPA-Houses and click on the latest edition of the IPA Hosting Book.