Polish currency is zloty (means golden) 1 PLN (zł)= 100 GR(groszy)
In June exchange rate is:

1 GBP = 6 PLN
1 EUR = 4,1 PLN
1 USD = 3,3 PLN

You can exchenge money in “ kantor “ (exchange offices ).
Is better not to exchange money in air port or in hotel exchange offices because they pay less for GBP or EUR than in another exchange offices.

Average price :
0,5l beer in pub - 6 PLN
O,5l beer in shop - 2,5 PLN
0,5l polish vodka in shoop - 20 PLN
0,5l polish vodka in restaurant - 70 PLN
0,33 cola in restaurant - 4 PLN
0,33 cola in shoop - 1,5 PLN
2 course dinner - 35 PLN
1 kebab - 7 PLN
1 box of good smoke - 7 PLN
Drunk tank - 250 PLN