The Polish Postal System
A bureaucratic nightmare buried under paperwork riddled with illegible stamps and seals, there is no indication that Poland's postal service -
Poczta Polska - will be automated or computerised during our lifetimes. There can be no doubt that the post office is one of the most frustrating places to be a foreigner in Poland, as you're guaranteed to not understand a damn thing happening there. Your best ally is the person in line next to you; if there's one person in the room who speaks not a word of English, it's the qualified clerk at the service window. Also, don't expect any signs to feature English translations, though all paperwork has been mystifyingly translated into French (and only French). When you get to the head of that insufferably long queue, don't be surprised to be sent to another or back to the end, paperwork in hand. The declaration that your nicely wrapped parcel is somehow 'unacceptable' is another popular reason why you might find yourself ready to 'go postal', though there are many others.
If sending something of any monetary or sentimental value, please, make sure you do so by using priority mail or better; magic word: 'Priorytet.' Choosing the cheapest overseas option available will ensure that your package takes months to arrive and is heavily tampered with en route. We're not exaggerating.
There are many post offices around Kraków, with Poczta Głowna at the corner of ul. Westerplatte and Wielopole (D-4) being the largest and most incomprehensible.
All post offices with the exception of ul. Lubicz 4 (open 24hrs) close early on Saturday, if open at all, and all will be closed Sunday. Good luck, gringo.