Does anyone have any idea about laundrettes in Prague? I would specifically like one that has big machines and driers and even better one where I can take bag loads of laundry and hand it over to someone who knows what to do with it, pay them, turn up a few hours later and it is magically all clean, dry, folded and back in the bag. Unusually for here I don't expect exemplary quality but not be willing to pay a decent price for it. Thanks