Public transport is operated by MZK Piotrkow trybunalski (http://mzk.piotrkow.pl/). The descriptions on bus stops are in Polish only. See the Polish phrasebook if you feel uncomfortable. The schedules are here
Taxis are another option, and they are quite cheap for a Westerner. However, one should be sure that there is a taxi sign atop the cab and that the driver has a permit. Best way is to use one of Taxi companies phone numbers:
Radio Taxi Pilica - 9625
Radio Taxi Plus - 9623
