Other contributors have said "How often to align a car?" is the same question as "When should I align my car tires?" If you believe that these are not asking the same thing and should be answered differently, click here
Somewhere on your vehicle, usually on the drivers door jam you will find a sticker with tire information on it. It will tell you what size tire and what psi is required for both front and rear tires...
If the car tires are worn out you wouldn't want to continue using them since they could be in bad condition. You wouldn't want to get into an accident.
You should have a few things in your car. Water and some kind of energy bar is always good, just make sure whatever food you decide on can be eaten cold, warm, and make sure it can't go bad. if you...