Getting around Warsaw is no problem. It has an excellent bus and transit system for residents and tourists. Driving is not recommended, since traffic is already tight, and places are relatively nearby. Bus stops are located all over the city, and buses run through the city main thoroughfares.
There are even double-decker buses on the weekends so you can enjoy Warsaw from the best view. Route is 50 minutes, weaving its way to important and scenic places around Warsaw. Timetables are efficient and the costs are cheap. More importantly, the system is reliable. Buses run between 5am to 11pm, and buses that are numbered 6XX serve the night shift.