The week is at its midpoint, and gas prices are pretty much where they were the day before. According to Gas Buddy, these are the cheapest prices in the area:
$4.13 - Shell and Chevron, 9700 and 9701 Jackson Rd. (as of Tuesday evening)
A little farther...
$3.87 - ARCO, 3501 Fair Oaks Blvd. (as of Tuesday afternoon)