My VietCali’s QEVP is probably the most simplest and free tool to help you to start speaking some Vietnamese. But I know you just can’t be online all the time to get to this page. If you are traveling to Vietnam and want to speak some local lingo then the next best thing to bring along is this Rough Guide Vietnamese Phrasebook. The book is basically a traveler phrasebook and a mini English<->Vietnamese dictionary. This book is less popular than some other phrasebook like Lonely Planet Vietnamese phrasebook but I think it’s much better in content and price. The publisher also provides audio files for some common conversation scenarios that you can download to yours MP3 player. The book also has tips and cultural tidbits that can enhance yours stay in Vietnam. There is one page titled Coloquialism but actually it contains profanity or bad words. I don’t think it’s approriate to use bad words when you travel to any country. But I guess you might need to recgonize the the words just in case you know someone is swearing at you . For less than seven bucks I think the book is a best buy for the money.