If you are wondering whether your car needs a wheel alignment, take a look at your tires.  Are they wearing unevenly?  Do you see more tread wear on the outside edges of your tires?  If you observe either of these, it’s a good indicator that your car is out of alignment.  A couple of other seat-of-the-pants indicators that an alignment is needed would be if your car tends to drift or pull to the side when you are driving straight, or if you are driving straight and your steering wheel is slightly off center.