I did find an old thread on the subject. But I am curious what 6 years has changed. What is the best and most cost effective way to not only check your tire pressure but inflate them? I have looked at few digital gauges and portable inflaters, but I am curious as to what you guys use. And I am sort of a newbie to this whole process, didn't really care about the tire pressure on the grand am. Any suggestions, help or advice would be appreciated. Thanks as always!