As you know, most of Eastern Europe suffers from extremely hugh rates of $ and Euro.
What can I say? Most of local people in Ukraine and Russia are in hurry to get foreign currency, but not all possible travellers know what exchange rates are.
Let me tell you about that if you are planning your trip to Ukraine in the nearest time.
2008: 1usd = 5.5 Grivnas (Ukrainian national currency)
2009: 1 usd = 9.4 Grivnas
2008: 1 Euro = 6.4 Grivnas
2009: 1 Euro = 12.7 Grivnas