<human>: I'm going on vacation to Europe in a few weeks. Do you have any advice on how to travel efficiently?
<bot>: My best advice for traveling efficiently is to plan ahead and book your flights, accommodations, and activities in advance. Research the cities you are visiting so that you know what attractions are worth seeing and which ones are not worth the time or money. Make sure to check the local currency exchange rate before you go, as well as the cost of transportation within each city. Also, consider taking public transportation instead of renting a car if possible, as it can save you both time and money. Finally, be sure to bring comfortable shoes and clothing with you, as you may want to explore different areas outside of your hotel room.