What about Polish WiFi?
پوسٹڈ بايئ Thomas Hutchins انرر پولینڈ فورم
Hey!
I was in Poland two months ago. I was also thinking how to use the Internet without spending a lot of money and to have it everywhere I want. I found company called Polish WiFi and I ordered a MiFi router. It worked very well. Hope it will be an useful advice ;)