Vandal Squirrel, you're my hero! I wish bus and rail made sense for my commute, but Atlanta has a poor transit system. I work in Gwinnett, and my job is not very close to the GRTA stops. I'd arrive to work as a perspiring (and not the type you can call a "glow") mess.
Luckily, I live about 20 mins from my job. (I used to commute 50 - 70 mins one way, so I moved closer to work.) I topped off my tank at $3.79 on Friday evening although I had filled up my tank on Monday at $3.55. I saw the price coming back up and wanted a cost-efficient fill-up. Despite being near the job, I actually drive slower (I try to stay between 50 and 55 mph), and I take an alternate route that has 1 stop light and 1 stop sign instead of the main route that has at least 7 traffic lights. Less idling = more gas in my tank. Even with a couple of errands, I only burned slightly less than 1/4 of a tank.
If you're not doing so already, I'd encourage people to modify at least one commute behavior to save more gas and more money.
NOTE: I hope I'm not sounding like one of the smug hybrid drivers on that episode of "South Park" because that's not the intent.
"Thaaaannnks!" 
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