Georgetown Hospital nurse Jackie Howell says she prefers filling up in Virginia before heading to work - feeling the pinch when gas prices rise.
I definitely have to reevaluate my budget, it definitely comes into play every day," she said. "I definitely don't fill up in D.C."
At an Arlington Exxon, the price of regular gas today is $3.75 per gallon. At a Shell station in the District, regular gas is $3.90 per gallon.
Potomac resident Hilary Raizon said: "I work in D.C. but I'm not going to come to D.C. and fill up. I fill up in Maryland."
But this week, the highest prices in the region are in Maryland. At a Bethesda station, a gallon of regular gas is $4.90 a gallon.
Statewide Maryland drivers saw a 14.5-cent increase, due to what experts say is partly because of unrest in Egypt, but also due to a 3.5-cent increase in the state gas tax beginning July 1.
Maryland driver Arnie Hecker isn't happy about the hike, but like others we spoke to she hopes the tax will at least help fund projects designed to reduce traffic gridlock.
"You know, if it saves me a few minutes on the highway, I'd be willing to pay a few cents extra per gallon," she said.