Put your hand at the top of your wheel and give it a shake. Clunk, clunk? You meay need new wheel bearings. Excessive pedal travel on the brakes? You may need new wheel bearings. Fairly inexpensive and fairly easy to replace, these will make your car roll along nice and smooth.
Make sure you get the inner and outer bearings and the wheel seal. Everything will be needed to complete this job. Need new brake rotors? Now would be the time for those as well. How do we know? We don't just sell this stuff at great prices, we live it, breath it and drive it nearly every day.