Travel / The best place to exchange GBP in Warsaw? [10]

Where is the best place to sell GBP in Warsaw? I mean on the airport or your hotel? Or maybe somewhere in the city?

Law / Warehouses in Poland [4]

Hi everybody,
I want to open a pound shop, here in UK and sombody told me that you guys heve warehouses in Poland for cheep chinese product. Does anybody know where are they in Poland? Or maybe some web address?

Thanks