I just want to mention that we used the Rick Steve's Prague and Czech Republic guide book. I really found it useful. The Czech :Lonely Planet Phrasebook was also helpful. Most everyone spoke English, but I fooled a few locals with my awesome Czech greetings. Well...that is until I could not answer them back. Ha! I did find it useful to know how to say the numbers when asking for food and beverages at a deli, bakery, or street vendor. Knowing how to say please and thank you in the native language will always endear you a bit more to the locals. It also helped we had two cuties with us :)