if it works stay with it

I came by an ad that brings the saying of "if its not broken, why fix it" back into the spot light. For example the hefty ad campaign it has been going on since the 80's, and it only entails 2 words."hefty hefty hefty, Stinky Stinky Stinky" Here is the url for a video of the commercial: http://www.youtube.com/watch?v=N6NJEMnMvgI&feature=related. So the lesson to learn from these commercials; if it works stay with it. These commercials are definitely a lasslikes.