What do alarm systems and automobile tires have in common? This may sound like a strange question to the untrained ear, but lend me yours and I will make sense of it.

The reason I mention car tires is that they are a necessity that most all of us have some experience purchasing, at least once in a while.

Even though we need good tires to keep our cars firmly on the road, when they are wearing out we often put the purchase off for a few weeks. If we are patient, a Saturday will eventually come along that we have no plans for, and we force ourselves to go to our local tire store.

Maybe it