One of the biggest trends in consumer marketing today is to appeal to the do-it-yourself mentality. Don’t think so? Just visit home improvement outlets such as Home Depot and Lowe’s for some clues. Then count the number of auto parts stores on your drive to the office. Also consider the iPod and other MP3 players, along with install-it-yourself audio speakers for giant-screen high-definition televisions. All of these products entice consumers to try their hands at creating their own perfect home entertainment theaters.