Arrange for transportation before arrival. Prague has an unfortunate (but accurate) reputation for unscrupulous taxi drivers at the airport and the main train station (Hlavni Nadrazi). There’s no need to splurge on a private driver—just book a transfer in advance on AAA Taxi’s website.
The Czech Republic isn’t on the euro. It’s on the Czech koruna. Take some money out of an ATM when you have a chance; you can exchange euros in shops, but the rate is subpar.
Make sure to tip in cash; any currency works. .Most restaurants will include a service charge and perhaps a cover fee, otherwise generally give about 10 percent at restaurants
Payment / card – Widely accepted. Carry cash for shopping at the markets.
Water - Usually safe to drink but bottled water is available everywhere.