Most hotels in Warsaw and Lódz offer Internet access (sometimes for a fee). There are also plenty of Internet cafés around, with rates between zl 3 and zl30 per hour for high-speed access. In Warsaw, you'll find several hot spots with free Wi-Fi access for those carrying laptops: in plac Zamkowy, ulica Nowy Swiat, ulica Chmielna, plac Bankowy, Warsaw University Library, the Traffic Club, and even in some restaurants and cafeterias. In Lódz, the library of Lódz Polytechnics, among other places, offers free Wi-Fi.
In Warsaw, the main post office in Swietokrzyska Street, and in Lódz, the post office in Tuwima Street, are open 24 hours a day.
Café Casablanca (ul. Krakowskie Przedmiescie 4/6, Warsaw. 022/828-14-47. www.casablanca.com.pl). Courtyard by Marriott Cyber Café (Okecie Airport, Courtyard by Marriott, Zwirki i Wigury 1, Warsaw. 022/650-650-01-72). Simple Internet Café (Marszalkowska 99, Warsaw. 022/628-31-90. www.simpleinternetcafe.com).
Café del Mundo (Piotrkowska 53, Lódz. 042/633-68-67). Spadochronowa (Narutowicza 41, Lódz. 042/631-91-57. www.skydive.pl/kawiarnia).
Poczta G[ac]ówna (Main post Office, Swietokrzyska 31/33, Warsaw. 022/826-60-01). Poczta No. 1 (Tuwima 38, Lódz. 042/632-58-16).
DHL (Wirazowa 35, Warsaw. 0801 -- 345-345. Kasprzaka 79, Lódz. 042/634-21-96. www.dhl.com). EMS Pocztex (Central Railway Station, al. Jerozolimskie 54, Warsaw. 022/825-77-18. Tuwima 38, Lódz. 042/633-94-52. www.pocztex.pl). Stolica (UPS, Pradzynskiego 1/3, Warsaw. 022/534-00-00. Traktorowa 111, Lódz. 042/658-82-26. www.stolica.pl).