What is it: Get a PDA and translator in one compact package with this talking dictionary that converts English to five Western European languages.
Why you need it: Although English is widely spoken across Europe, it's a good idea to know a few handy phrases in several tongues. The Multilanguage Partner has a large library of useful terms and expressions. Bonus use: Shocking uppity Parisian hoteliers with some complex French prose. Just work on that accent first.