December 8, 2008 8:52 am Lowest Gas Prices in 4 Years Come to Bay Area Many Americans have tweaked their driving habits, part of the explanation for a steep drop in gas prices. US & World Videos 4:18 Peninsula bakery getting rid of tips 3:45 Preview: Firefighter uniform safety investigation 2:50 A closer look: College campus pro-Palestinian protests 2:36 In the news: Self-checkout proposal, WNBA Golden State GM, warmer temps ahead 2:37 New California bill could force stores to close self-checkout