I've noticed in the past that Northern tool cataloge has equipment you can buy to change your own tires and balance them yourself. I've been thinking about buying them to save myself money whenever I need new tires put on. Looks to me they would pay for thereself just after a few changes. I know it beats buying $75 tires and by the time they are installed it cost you $100 or more each after adding road hazard, balancing fees, etc, etc,. I personally have never had to use my road hazard insurance. Not to say I might need it tomorrow but I think in the long run it would still pay off by changing my own. Plus, fixing my own flats if needed. So I guess my question is, Do any of you do your own tires? What are the pro's and con's?